China bounced clear of Japan at the top of the medal table at the Tokyo Olympics thanks in part to a gold medal in trampolining.

Xueying Zhu edged out compatriot Lingling Liu to win the women’s final, maintaining the country's dominance in the event. Only at the Sydney Games in 2000 has China ever failed to have a competitor make it onto the podium.

There was also an all-China final in table tennis, Ma Long defeating compatriot Fan Zhendong in the men's singles final.

Add in further success in the mixed doubles final in badminton and China now has 19 golds at these Games, two more than the host nation.

The United States sit third in the standings with 14 golds, while Great Britain remain in sixth place thanks to Beth Schriever riding away with a gold in the women’s BMX final.

New Zealand improved on their previous solitary gold with not one but two victories in the water on Friday. Emma Twigg's win in the women's single sculls final was followed by glory for the men's eight. The women's team in the same discipline claimed silver, finishing second to Canada.

Ethiopia celebrated a first medal of any colour on Japanese soil, Selemon Barega triumphant in the men's 10,000 metres final as the athletics began, a fast finish seeing him cross the line ahead of Ugandan duo Joshua Cheptegei and Jacob Kiplimo.

Selemon Barega took the first athletics gold of the Tokyo 2020 Olympics on a day when Novak Djokovic saw his Golden Slam hopes ended.

Barega topped the podium for Ethiopia as he saw off competition from Ugandan duo Joshua Cheptegei and Jacob Kiplimo on Friday.

The 21-year-old ran a smart race and had the stronger finish in him to see off pre-race favourite Cheptegei, who took silver ahead of compatriot Kiplimo.

"It means a lot to me because I have been practising a lot, not only by myself but together with the Ethiopian people," said Barega, who quickly sets his sights on future success.

"As an athlete the primary target for us is to participate in the Olympics, be a champion, and also be able to break the record.

"So I'm really thinking about future opportunities for me to achieve that, and if possible I'm also communicating with my manager about that."

There was no such joy for Djokovic as his bid to become the first man to win a calendar Golden Slam was crushed by a semi-final defeat to Alexander Zverev.

Djokovic was a set and a break up but the Serbian contrived to lose eight games in a row en route to a 1-6 6-3 6-1 loss.

Germany's Zverev had sympathy for his beaten opponent, who he declared as the greatest of all time.

He said: "I know that he was chasing history, chasing the Golden Slam and chasing the Olympics, but in these kind of moments me and Novak are very close. Of course I'm happy that I've won, but at the end of the day I know how Novak feels.

"I feel sorry for Novak, but he's won 20 grand slams, 550 Masters Series or whatever, you can't have everything.

"He's the greatest player of all time, he will win the most grand slams out of anybody on tour, but I'm also happy that I'm in the final."

Defeat in the mixed doubles means the 20-time grand slam champion will face two bronze medal matches in Japan.

MIXED RELAY WOES FOR USA

The 4x400 metre relay mixed event made its debut in the Olympics on Friday but it did not go well for the favourites as the United States suffered disqualification.

One of the team's baton exchanges was deemed to have taken place outside the designated zone, ending their campaign and leaving the gold medal up for grabs.

Poland qualified fastest with a time of three minutes 10.44 seconds, with the Netherlands close behind and Jamaica also in the mix.

SCHAUFFELE LEADS THE WAY IN RAIN-AFFECTED MEN'S GOLF

Xander Schauffele fired a 63 to move top of the leaderboard at Tokyo 2020, while home favourite Hideki Matsuyama and Rory McIlroy made big moves on Friday.

The threat of serious weather caused another delay on day two, and eventually brought an early end to play with Matsuyama among those not to finish his round.

But Schauffele, who has a big following in Japan as his mother was brought up in the country, sat pretty at 11 under as the stellar names bared their teeth at Kasumigaseki Country Club.

Matsuyama was six under through 16 holes of his second round and eight under overall for the tournament.

McIlroy matched Matsuyama's round-one score but shot five under in round two and is well in the mix four shots back.

A LONG TIME COMING

Ma Long took gold in the table tennis as he became the first man to win consecutive Olympics titles in the event.

It was an all-Chinese final and Ma roared to victory against Fan Zhendong.

China also secured a one-two in the badminton mixed doubles.

IGLESIAS CAN BE CUBA'S HERO

Cuban welterweight fighter Roniel Iglesias earned a third Olympic medal after sinking American Delante Johnson with a sweep of the scorecards.

After a bronze in Beijing and gold at London in 2012, Iglesias savoured another chance to target the top step of the podium.

The 32-year-old said: "It is my third medal which is very important but what I really want is to win the gold medal. It is a historic moment for me and for my country, Cuba. I am very happy at this achievement."

Light heavyweight Ben Whittaker admitted he was a blubbering mess after securing at least a bronze medal for Great Britain. He set up a semi-final against Imam Khataev – representing the Russian Olympic Committee – after scoring a majority points win over Brazilian Keno Machado.

Whittaker was overwhelmed by the result and burst into tears at the realisation he would be taking home a medal.

"That was the hard part, getting that medal," Whittaker said. "I won't relax, but I've pushed through that first door now and all I have to do is start changing that colour. Bronze is a lovely colour but everyone wants gold."

DRAMA APLENTY IN WOMEN'S FOOTBALL

The quarter-finals of the women's football competition delivered on drama in a big way.

Penalty shoot-outs were needed for Canada and the United States to progress to a last-four showdown, with Brazil and the Netherlands their respective victims.

Australia won a seven-goal thriller 4-3 against Great Britain after extra time and will now meet Sweden, who knocked out hosts Japan 3-1.

Ethiopia's Selemon Barega secured gold in the men's 10,000 metres final as the athletics got underway at the Tokyo Olympics on Friday.

Barega surged clear of Joshua Cheptegei and Jacob Kiplimo, who were each denied a first Olympic gold for Uganda, as he clocked 27 minutes 43.22 seconds in the Japanese capital.

Cheptegei, the 2019 world champion, was highly fancied to win, while compatriot Kiplimo would have become the youngest man to be crowned champion at the distance at the age of 20 years and 258 days.

But Barega, himself only 21, claimed the honour of the maiden athletics gold at this year's event after timing his kick for the line to perfection.

USA SUFFER MIXED RELAY DQ

It was a disappointing outing for the United States' mixed 4x400m relay team as the favourites were disqualified.

The event is making its debut in the Olympics but the landmark will not be fondly remembered by USA's foursome after one of their baton exchanges was deemed to have taken place outside the designated zone.

That has left the gold medal well and truly up for grabs, with Belgium, Ireland and Germany the automatic qualifiers from heat one, while in heat two it was Poland, Netherlands and Jamaica.

Great Britain and Spain round off the final eight, having gained the two next best times.

HASSAN SETS THE STANDARD

Dutchwoman Sifan Hassan laid down a marker in the heats for the 5,000m.

The first heat was much quicker than the second, with Hassan's 14:47.89 leading the way.

She is chasing a first Olympic medal and will face stiff competition from the likes of Kenya's Hellen Obiri.

Obiri won silver in Rio and qualified second fastest in the second heat with a time of 14:55.77.

HAVING A FIELD DAY

In two of the field events to begin on Friday, women's world number one triple jumper Yulimar Rojas recorded the longest leap of the heats at 14.77m.

The Venezuelan, a two-time world champion, had to settle for silver in Rio behind Colombia's Caterina Ibarguen, who will be eyeing a repeat in Tokyo.

Ibarguen's qualifying jump was a season's best 14.37m.

China led the way in the women's shot put, Gong Lijiao staking her claim with a throw of 19.46m, putting her ahead of compatriot Song Jiayun (19.23).

Reigning champion Connor Fields is "awake and awaiting further medical evaluation" after a sickening crash in the semi-finals of the men's BMX racing at the Tokyo Olympics.

The American 2016 gold medallist was stretchered off the course and taken to hospital after the major crash with Twan van Gendt of the Netherlands and Sylvain Andre of France in the third run of the semi-final heats.

"We can confirm that Connor Fields is awake and awaiting further medical evaluation. We will share additional updates as they become available," a USA team doctor said.

Fields, appearing in his third Olympics, had already qualified for the final but was unable to take his place, given the injuries sustained, with Niek Kimmann from the Netherlands taking out the gold.

Great Britain's Kye Whyte claimed silver with Colombia's Carlos Alberto Ramirez Yepes winning the bronze.

Another gold medal contender, Australia's Saya Sakakibara, also crashed out in the women's BMX racing.

Sakakibara, whose brother Kai suffered life-changing head injuries from a crash in the sport 15 months ago, was carried off the course on a stretcher but later able to perform media interviews.

The Australian had been leading the pack ahead of the last turn in the third run of the semi-finals, before a clash of wheels with USA's Alise Willoughby brought the pair down.

Australia's Olympic team tweeted that Sakakibara had "sustained a few bumps and bruises and will continue to be monitored over the next 24 hours as a precaution".

Sakakibara told Channel 7: "This is so disappointing. I feel like I have let everyone down. I let everyone down, especially my brother."

Great Britain's Bethany Shriever went on to win the gold medal, ahead of Colombia's Mariana Pajon and the Netherlands' Merel Smulders.

SCHOENMAKER SMASHES WORLD RECORD

South African Tatjana Schoenmaker improved on her 100 metres women's breaststroke silver medal with a gold in Friday's 200m, as well as smashing the world record.

Schoenmaker finished in two minutes and 18.95 seconds, breaking Rikke Moller Pedersen's pre-existing mark of 2:19.11, as she beat USA pair Lilly King and Annie Lazor.

"I wasn't expecting that at all," Schoenmaker said about her world record, having appeared visibly stunned upon realising her time. "I was really trying to focus on my own race. [King] definitely pushed me, knowing that her first 100 is so good."

Russia Olympic Committee's Evgeny Rylov swam an Olympic record time to win the men's 200m backstroke, having won gold in the 100m earlier this week.

Rylov, who swam 1:53:27, beat USA's Ryan Murphy and Great Britain's Luke Greenbank.

Australian Emma McKeon also marked an Olympic record as she won gold in the women's 100m freestyle ahead of Hong Kong's Siobhan Haughey and countrywoman Cate Campbell.

China's Wang Shun won the men's 200m individual medley from Britain's Duncan Scott and Switzerland's Jeremy Desplanches.

KIWIS DOMINATE THE ROWING

New Zealand picked up a handsome share of the rowing medals at the Sea Forest Waterway, with two golds and a silver from the four events on Friday.

Emma Twigg triumphed with an Olympic-best time of 7:13.97 in the women's single sculls, finishing ahead of Russia Olympic Committee's Hanna Prakatsen and Austria's Magdalena Lobnig.

New Zealand also won in a thrilling finish from Germany and Great Britain in the men's eight final, edging out the Germans by less than a second.

Hamish Bond was part of the New Zealand eight, having won golds in 2012 and 2016 in the coxless pair, before focusing on cycling in 2017, only to revert back to rowing for Tokyo.

Bond said: "The thing about an eight is it doesn't matter what you do as individuals, it's how you can collectively harness that potential."

Canada won the women's equivalent, pipping New Zealand across the line by 0.91 seconds, with China in third.

Greece won their first medal of the Games in style, with Stefanos Ntouskos claiming gold in the men's single sculls from Norway's Kjetil Borch and Croatia's Damir Martin.

WOMEN'S 100M HEATS UP

The track events got under way, with the women's 100m heats the main attraction at the Olympic Stadium, headlined by Ivory Coast's Marie-Josee Ta Lou with the joint fourth quickest legal time ever seen at the Games.

Two-time World Championship silver medallist Ta Lou ran a personal best time of 10.78 seconds.

Jamaican duo Elaine Thompson-Herah – the reigning Olympic champion – and Shelly-Ann Fraser-Pryce were the next fastest, with 10:82 and 10:84 respectively.

With the field stacked with quality, Fraser-Pryce said: "There's rivalry with everybody. All female athletes are showing up and you're competing so I don't focus on just one individual."

The opening session of the track and field portion of the Tokyo Olympics was highlighted by a trio of strong performances, with Jamaicans Natoya Goule, Elaine Thompson-Herah and Shelly-Ann Fraser-Pryce showing impressive form.

Overall, though, there were plenty of solid performances as the event that will see the bulk of the Caribbean’s athletes, competing over the next few days, got underway.  

First up, the Jamaican trio of Fedrick Dacres, Traves Smikle and Chad Wright opened competition in the Men’s Discus.  Wright was the only one to progress to the final as the last qualifier, finishing 12^th overall with a throw of 62.93 metres.

Dacres was only two centimetres behind Wright, throwing 62.91m to finish 13^th overall, while Smikle could only manage a best distance of 59.04m to finish 25^th overall.

Goule was the first competitor to grace the track and started things off with a bang as she ran a very impressive 1:59.83 to win heat 2 of the women’s 800 metres.

The men’s 400 meters hurdles saw four Caribbean men progress to the semi-finals. The list included Jamaicans Kemar Mowatt, Jaheel Hyde and Sean Rowe and The British Virgin Islands Kyron McMaster.

Mowatt finished 4^th in heat 1 with a time of 49.06.  Hyde ran 48.54 to comfortably win heat 2.  Both McMaster and Rowe advanced from heat 4, with McMaster winning with a time of 48.79 and the Jamaican finishing 3^rd with a season’s best of 49.18.

The session was capped off by the heats of one of the most highly anticipated events at the Olympics, the women’s 100 metres.

The event featured 10 athletes from the Caribbean.

 Antigua and Barbuda’s Joella Lloyd finished 7^th in heat 1, in a time of 11.54.

Heat 2 was comfortably won by Jamaica’s defending double Olympic champion, Elaine Thompson-Herah, who signalled her intent at these games with a smooth 10.82.

Kelly-Ann Baptiste of Trinidad and Tobago also competed in heat 2 and finished 6^th in 11.48.

Tristan Evelyn of Barbados ran 11.42 to finish 6^th in heat 3.

Amya Clarke of St. Kitts & Nevis finished 7^th in heat 4 with a time of 11.71.

Heat 5 was the turn of multiple-time Olympic and World Champion, Shelly-Ann Fraser-Pryce, to announce herself in Tokyo.

She didn’t disappoint, winning in a time of 10.84 to advance to the semi-finals.

 Tynia Gaither of the Bahamas was next up on the track, finishing 3^rd in heat 6 to advance.

Heat 7 saw the most Caribbean representation with Shericka Jackson of Jamaica, Michelle Lee-Ahye of Trinidad & Tobago and Jasmine Abrams of Guyana all taking part.

Ahye won the heat with a time of 11.06, finishing just ahead of Jackson who ran 11.07 for 2^nd while Abrams finished 7^th in 11.49.

The fastest overall qualifier from the heats was Marie-Jose Talou of the Ivory Coast who ran 10.78 to win the 4^th heat.

Marie-Josee Ta Lou produced one of the fastest women's 100 metres in Olympic Games history as the sprint heats showcased a string of stunning displays on day one of the athletics.

The 32-year-old from Ivory Coast posted a personal best of 10.78 seconds, the joint fourth quickest legal 100m ever seen at the Games, excluding those that have exceeded wind assistance limits or been wiped from the record books because of doping.

Two-time World Championship silver medallist Ta Lou delivered her standout display in the fourth heat and said: "Surprise, surprise. I'm in shock actually. I know I'm ready. I will be re-focusing on my run because I really didn't expect to run as fast as I just did. And 10.78, it's great."

Asked whether advancing spike technology had helped, Ta Lou said: "No, I don't think so because I feel the same way when I wear other shoes. This one was not making me run really fast. It's only the colours."

She was joined in producing an early statement of intent by Jamaicans Shelly-Ann Fraser-Pryce and Elaine Thompson-Herah – the defending champion – with the women's 100m shaping up to be more tantalising a race than the men's equivalent.

Fraser-Pryce is the fastest woman in the world this year, having run a 10.63 in June – the quickest legal 100m since Florence Griffith-Joyner's still-startling 1988 hot streak.

The 34-year-old ran 10.84 to win heat five, and when asked if there was rivalry in the Jamaican ranks she said: "Oh, there's rivalry with everybody. All female athletes are showing up and you're competing so I don't focus on just one individual.

"If you notice the heat, that's some really quick running, so you just have to make sure that you're ready. And I think it's good for females sprinting. It's long overdue and I'm hoping that it definitely is up to the expectation."

Thompson-Herah did the 100m and 200m sprint double in Rio five years ago and is chasing more gold medal success in Japan, with her first outing showing she is in great shape to contend, the 28-year-old closing 10.82 in the second heat.

"These are some of the quickest fields in the history of the event," she said.

Britain's Dina Asher-Smith was a comfortable second in the first heat, clocking 11.07 as Teahna Daniels crossed first in 11.04, and was asked whether this might be a fast track.

"I think so, but I really wasn't thinking about things like that. It might be," Asher-Smith said. "But today was just about making it through to the next round safely at the same time as knowing I've got another level to give tomorrow. And I do have another level, of course I do. It's an Olympics."

It's already been a week since Naomi Osaka lit the Olympic cauldron.

The Games like no other, the Games that no one wanted, the pandemic Games... whatever you want to call them, the Games began and Friday now brings the first day of athletics to Tokyo 2020.

So, what's the state of play out in Tokyo?

Stats Perform journalist Peter Hanson has been out in the Japanese capital and answers some of the big questions to give us an overview.

Where were we prior to the Games?

The perception from afar of the public attitude in Tokyo, and indeed all around Japan, was one of fear, mistrust and indeed anger that the Games would take place despite being in the midst of a deadly pandemic.

Back in January, a survey by Kyodo News Agency found approximately 80 per cent of people did not want the Games to take place as scheduled. As recently as April a different poll by consultancy firm Kekst CNC suggested 56 per cent did not want them to go ahead. 

By June, there was an indication that public angst was softening a little when the conservative newspaper Yomiuri found 50 per cent of its responders wanted the event to go ahead, up from 39 the month before, while those thinking it should be cancelled dropped from 59 to 48.

Still, there was a very real reminder that significant opposition remained when protestors could be heard outside the Olympic Stadium at the opening ceremony.

There were other PR difficulties to contend with, too. Leading Japanese brand Toyota – which has a lengthy Olympics association – pulled all advertisement relating to the Games on Japanese TV.

On the eve of the opening ceremony, its director resigned over comments made about the holocaust, while a composer stepped away amid allegations of bullying. A few months earlier, the creative director resigned following derogatory remarks about women.

So, yeah, it wasn't exactly the normal pre-Olympics buzz.

Has there been a shift in mood among the residents of Tokyo?

My own personal experience of the locals here has admittedly been restricted to those working at the Games – even my hotel is on a designated list of accommodation facilities the media have to stay at – due to the agreement made in my activity plan for the Japanese government to only visit Games-specific venues.

But there has been overriding enthusiasm from those involved. Everyone working at the venues, at the media centre, at the transport mall, on the shuttle buses, goes above and beyond to help solve issues or direct you to the right destination – all with big smiles and a customary bow, even when standing for hours in the searing 30-degrees temperatures or the tropical downpours.

Koki Horada is a local freelance video journalist working alongside me for Stats Perform at these Games. Koki spent over 20 years living and working in the UK and he thinks there has been a shift in the perception of the Olympics in Tokyo.

"Before the opening ceremony many people protested against the Olympic Games but once it started the mood changed," he told me.

"I think the opening ceremony helped and also the judo where the Japanese men got a gold medal.

"Now the Japan team has a lot of gold medals. And there's people with a kind of nationalism or love for Japan or for the Olympic Games [as a result of that]."

Japan has had a fair bit of home success so far – is that helping to change the mood?

The best way for any host nation to capture the imagination of the public has always been to rack up the gold medals – I remember for example being completely enthralled in 2012 by the success of Team GB in London.

It feels particularly important that Japan do well in these Games and, so far at least, the home favourites have been pretty impressive.

There have been some disappointments. Daiya Seto failing to even get out of the heats when favourite in the men's 400m individual medley on the first night of swimming being one. The significantly more damaging one, of course, being cauldron-lighter Osaka's third-round exit to Marketa Vondrousova in the women's tennis.

But there has been plenty to celebrate, too. Yui Ohashi grabbed a medley double in the pool, Chizuru Arai and Takanori Nagase earned judo golds, and earlier this week Japan actually led in the medal table.

So, even the sceptics may have been swayed by watching the Japanese favourites succeed at these Games.

Koki tells me that actually plenty were already in support of the Olympics but perhaps did not feel as though they could make such an opinion heard.

"I think the media reported that more than half of the people were against the Olympics but it's not true, I think," he said.

"I think it's just Japanese culture, always Japanese people want to join the majority opinion. That's just culture, it's the difference between say European and American people. 

"The people who wanted to support or wanted to enjoy the Olympic Games couldn't say so or they couldn't show the attitude beforehand, but now things started changing more."

Is COVID still causing concern?

I mean, where isn't it?

By Wednesday, the capital recorded over 3,000 cases in a single day for the first time during the pandemic. 

Thursday's numbers showed there were 3,865 in Tokyo, 10,000 in Japan in total (the first time they had ever exceeded 10,000), and 193 Olympics-related coronavirus infections had been recorded.

It's impossible not to feel slightly apprehensive at times, it was certainly a factor I myself battled with before deciding to fly out here.

The thing is, though, that – certainly within the infrastructure of the Games – every step has been taken to reduce infections. There are temperature checks to get in every venue, testing every four days (it's more regular for athletes), hand sanitiser everywhere you turn, mandatory face masks and social distancing observed.

The Tokyo locals had come to expect some rise in cases. When it comes to COVID and infection numbers, though, what do you ever call an acceptable level?

Are the Games a success or will they be?

Truthfully, it's a hard question to answer. It just feels like the measures for "success" are too arbitrary.

And it really does depend on whose viewpoint you're looking at.

For the IOC and Tokyo 2020 organisers, the fact we are even here at all is probably a cause for celebration. Getting through to August 8 without major incident is now the real target for the bigwigs in charge.

Inside Tokyo, there probably will be a collective sigh of relief when hordes of athletes, officials and the world's media pack up their cases and return home.

Those watching around the world seem split firmly down the middle. For some, the Games offer a little escapism and the true moments of magic that only an Olympics can bring still resonate. For others, the empty stadiums and the COVID-related uncertainty over all events make it a poor experience.

Personally, I've always been somewhere down the middle on it.

I love sports, I love the Olympics, and the privilege I have to be out here when others can't be is absolutely not lost.

But it can be pretty surreal watching moments that should be playing out in front of raucous crowds occur to just the ripples of noise from their supporting team-mates.

And, truthfully, the further I get towards the end point and flying home, the more that nagging voice in the back of my head saying "please don't get COVID, please don't get COVID" edges forward and becomes less of a whisper and more a constant scream.

Friday sees the start of the Olympic athletics schedule and the first tennis medals will be won in Tokyo.

The men's 10,000 metres final will be staged on the first day of track and field action at the Olympic Stadium.

There will be an all-Croatia men's doubles gold medal match at the Ariake Tennis Park, plus no doubt more drama to come in the pool.

Stats Perform picks out some of the standout events to look forward to.

CHEPTEGEI FAVOURITE FOR FIRST TRACK GOLD

Joshua Cheptegei and Jacob Kiplimo both have the chance to become the first athlete from Uganda to win an Olympic gold medal in the men's 10,000m final.

Cheptegei, the 2019 world champion, is well fancied in the last event on the track on Friday, while his compatriot Kiplimo could become the youngest man to be crowned champion at the distance at the age of 20 years and 258 days.

Yomif Kejelcha of Ethiopia and Canadian Mohammed Ahmed also have high hopes of making it onto the podium. 

Other events to look out for are the start of the women's 100m, men's 400m hurdles and men's high jump, along with the women's 800m and women's triple jump.

CROATIA GUARANTEED DOUBLES GOLD

One guarantee on Friday is that Croatia will add a gold and silver medal to their tally at the Tokyo Games.

Marin Cilic and Ivan Dodig will face compatriots Nikola Mektic and Mate Pavic in the gold medal match in the men's doubles final.

The men's singles semi-finals will also take place, with Novak Djokovic, chasing a Golden Slam this year, up against Germany's Alexander Zverev.

Karen Khachanov of the Russian Olympic Committee will do battle with Spaniard Pablo Carreno Busta to find out who will make it through from the other half of the draw.

HIGH HOPES FOR AUSTRALIAN DUO

Emma McKeon and Cate Campbell could make it an Australia one-two in the women's 100m freestyle final.

McKeon set a new Olympic record of 52.13 seconds on Wednesday and will go out in lane four next to her dangerous compatriot Campbell.

That is one of four finals on Friday, with Tatjana Schoenmaker of South Africa expected to take some stopping in the 200m breaststroke final after clocking an Olympic record time of 2:19.16 this week.

Medals will also be up for grabs in the men's 200m backstroke final and the men's 200m individual medley.

Australia's track and field athletes endured a two-hour wait on Thursday before fears their Tokyo Olympics hopes might be in jeopardy were allayed.

A link was established to United States pole vaulter Sam Kendricks, who has tested positive for COVID-19 and been ruled out of the Games, and Australia's team were sent into isolation.

However, checks returned all-clear results, with only three athletics team members required to remain isolated.

Kendricks had reportedly been training this week alongside Australian Kurtis Marschall, and the Australian Olympic Committee (AOC) stated that three members of their squad had "brief casual contact" with a US athlete who had tested positive.

The upheaval came on the eve of the athletics programme getting under way at Tokyo 2020 and saw 57 Australian athletes and officials briefly in limbo.

In a statement, the AOC said: "Members of the Australian track and field team in the Tokyo Olympic Village have been cleared to return to their regular routines after earlier isolating in their rooms as a precautionary measure.

"The all-clear comes after three members of the team underwent PCR testing following a brief casual contact with a US track and field athlete who had tested positive to COVID-19.

"All three tested negative after undergoing a PCR test this afternoon, while team-mates remained in their rooms in line with AOC COVID protocols.

"The three, who are all vaccinated, self-reported once they heard news of the US athlete testing positive late this morning. All daily tests of the trio in the Village had also returned negative results."

The AOC said the three individuals who were tested would remain isolated for now but would be allowed to resume training on the proviso their contact with others is limited.

"At this stage all athletes are expected to compete as planned," the AOC said.

While those three athletes must follow the strict guidance, the AOC said 41 athletes and 13 officials had been given permission to leave their rooms after "a little over two hours" spent cooped up.

Australia chef de mission Ian Chesterman said: "Once again, abundant caution and our strict protocols continue to keep the team safe. We want every Australian athlete to be in a position to have their Olympic moment."

Australian track and field athletes at the Tokyo Olympics are isolating after a link was established to US pole vaulter Sam Kendricks, who has tested positive for COVID-19.

Kendricks has been ruled out of the Games, and he has reportedly been training this week alongside Australian Kurtis Marschall.

The Australian Olympic Committee said in a statement: "Members of Australia's track and field team at the Tokyo Olympic Games are isolating in their rooms as a precautionary measure following news of a COVID positive finding with a member of the US track and field team.

"Members of the Australian track and field team are now undergoing testing procedures in line with Australian Olympic team protocols."

The news comes on the eve of the athletics programme getting under way at Tokyo 2020, potentially putting some members of the team at risk of missing out.

The Sydney Morning Herald reported 63 Australian athletes were isolating, some of whom immediately took COVID tests.

News of Kendricks' positive test was a jolt to the American team, with the world champion having been a likely medal contender.

USA Track and Field said in a statement: "US pole vaulter Sam Kendricks has tested positive for COVID-19 and is therefore ineligible to compete at the Tokyo Games. He and his close contacts were immediately notified and protocols were activated to isolate the athlete."

Argentine pole vaulter German Chiaraviglio also announced he has tested positive, stating on Instagram: "It is very hard to process something like that, it will surely take me a long time. We knew this Olympic Games was different and with different rules, and here I am, it's my turn.

"I am isolated in a hotel where I will spend several days, and where the main objective is to take care of my health."

Jamaican-born Swiss sprinter, Alex Wilson, will not be allowed to compete at the Tokyo Olympics.

This comes after a provisional suspension handed to Wilson by Anti-Doping Switzerland was upheld by the Court of Arbitration for Sport (CAS).

Wilson, a bronze medalist in the 200 metres at the 2018 European Championships, was handed the mandatory provisional suspension after an out-of-competition sample collected from him on March 15th revealed the presence of a metabolite, trenbolone, an anabolic steroid.

The Swiss sprinter blamed the presence of the prohibited substance on the consumption of contaminated beef he ate at a Jamaican Restaurant in the USA.  Wilson then challenged the ruling at the Swiss Olympic Disciplinary Chamber and was successful, as they arrived at a ruling to lift his suspension on July 2nd.

The Athletics Integrity Unit (AIU), acting on behalf of World Athletics, along with WADA then successfully filed an application against the Disciplinary Chamber’s decision requesting that the provisional suspension be reinstated.

Head of the AIU, Brett Clothier, had this to say about the situation.

“We were not satisfied with the national-level decision to lift the mandatory provisional suspension and so together with WADA we appealed the decision. This case reflects the AIU’s commitment to protecting the interests of clean athletes and ensuring a level-playing field in Tokyo.”

 Wilson turned heads in the track and field world at the Georgia Games on July 18th with massive lifetime bests of 9.84 in the 100 metres and 19.84 in the 200 metres.

Tokyo recorded over 3,000 daily coronavirus cases for the first time, less than a week after the Olympic Games began.

The Tokyo Metropolitan Government recorded 3,177 cases of COVID-19, a record number in a single day just 24 hours on from the 2,848 on Tuesday, which represented the previous high.

Japan's capital remains under a state of emergency while the Games take place. Wednesday marked the fifth day of the competition.

Another 16 Olympics-related cases were announced by Tokyo 2020 organisers on Wednesday, taking the total to 169.

Tokyo 2020 spokesperson Masa Takaya told a news conference: "As a city resident myself and as an organiser, my heart hurts that case numbers are rising." 

Last Wednesday, when football and softball competitions began for the Olympics, the city recorded 1,359 cases.

 Two-time Olympic 100m gold-medalist Shelly-Ann Fraser-Pryce and double Olympic silver medalist Yohan Blake have been named captains of Jamaica's track-and-field team at the Tokyo 2020 Olympic Games.

"Some days you've just got to attack the f*****g mountain, that's as simple as it is."

Those were the words of Adam Peaty during his pre-camp for Tokyo 2020. And boy has he attacked that mountain.

Five years ago, Peaty broke new ground to become an Olympic champion for the first time in Rio and set in motion a Team GB gold rush that would see them ultimately finish second in the medal table.

On this occasion, there was no world record – the only thing that is sure to secretly irritate this perfectionist who revels in finding new ways to push the limits of what is humanly possible – but not for the first time Peaty obliterated the competition to once again win Olympic gold in the 100 metres breaststroke.se

Whether his success can have the same sort of rousing effect on Team GB, only time will tell.

What is more certain is that Peaty must surely now be considered among the pantheon of Olympic greats.

At one stage in 2021, the 26-year-old was in possession of the 20 fastest 100m breaststroke times in history. It is mind-boggling dominance.

When the great Usain Bolt used to race there was a real awe about the way in which he had his opponents beaten by the time he was on the start line. It was mesmerising watching the sprint king, who just seemed to defy logic.

Peaty in the pool exudes a similar feeling. To witness this phenomenon in person is some experience. If you blink you might miss him.

Following his victory in the heats on Sunday, Peaty described Tokyo 2020 as "weird" without the crowds – with fans of course absent due to the coronavirus pandemic – and conceded it did "not feel like an Olympics".

He does have a point. Peaty's moment of triumph came on a day where Ariarne Titmus defeated Katie Ledecky in an epic to clinch the women's 400m freestyle – a race that really did deserve a full house – and Caeleb Dressel, tipped as an heir to American great Michael Phelps, won the first of what is likely to be multiple gold medals at these Games.

Such stars deserve a captivated audience. The cheers of their team-mates offered only slight consolation that their moments of glory are taking place in surreal circumstances.

But there is nothing strange now about seeing Peaty dominate in the pool and while the circumstances compared to his first crowning moment in Brazil could scarcely be more different, he continues to enhance his status as a supreme champion.

His latest victory was a moment of history – no British swimmer had ever defended an Olympic title before. Only three other swimmers from Britain have ever won multiple golds, and he is just the second man to defend the 100m breaststroke title after Japan's Kosuke Kitajima.

When you think of the great athletes Britain has produced – Steve Redgrave, Kelly Holmes, Chris Hoy, Laura Kenny, Jason Kenny – all belong in the category of elite Olympians.

That Peaty now too belongs in that same category is not even a debate. He is a cool competitor, but he is also a ferocious one. A contemplator, a thinker, a man who self-described himself as "liberated" by the circumstances of the past year, time that saw him become a father and learn to appreciate the important things in life as lockdowns and restrictions became the norm for us all.

What is scary is that you feel there is still new ground for Peaty, unbeaten in his event since 2014, to break.

Speaking prior to the Games, Peaty opened up about what makes him the athlete he is.

"It sounds very cliche but I'm very obsessed with continual improvement and pushing the boundaries of what's possible," he said then. 

"I don't want to end my career and go 'oh I could have done that or I should have done this'. It's that relationship with the team that makes me that person. But I think it's also I just love to race, I love to scrap and I like to dominate. That's why I swim, that's why I race it gives me something I can't get in normal life."

And even now with all he has achieved there still seems to be an unquenchable thirst to be the best, no taking the foot off the gas in a continued desire to go where no one has been before.

"No one is invincible, everyone can be beaten," he told a news conference following his victory in Tokyo.

"I'm a firm believer in that. If I didn't believe in that I wouldn't have the world record, it's about setting no limits. 

"Today could have gone either way. It's a morning final, you saw it this morning with such a close race with Ledecky and Titmus, it could have gone either way.

"Everyone is beatable, it's who wants it more and who is invested more in those races."

For most, owning the world record and becoming a double Olympic champion would be well beyond the pinnacle of the mountain.

For Peaty, it seems certain he will just keep on f*****g attacking it.