Billy Horschel leads the way after the opening day of the Farmers Insurance Open in San Diego with world number one Jon Rahm the best of the big names in the field.

Horschel leads by one stroke from Michael Thompson after the 35-year-old American carded a bogey-free nine-under-par 63 on the North Course at Torrey Pines.

World number 23 Thompson also went bogey free on Thursday, birdieing four of his first five holes to jump out of the blocks, before birdies on the 17th and 18th holes rounded out a strong day.

Stephan Jaeger and Kevin Tway are seven-under-par, with Rahm on six-under-par alongside three others players; Rickie Fowler, Doug Ghim and Francesco Molinari.

Rahm's round on the South Course included two bogeys and six birdies but he jumped up the leaderboard with an eagle on the 18th.

Sam Burns, Daniel Berger and Tony Finau are among a group of players tied at five-under while Justin Thomas started with a four-under-par 64 but had five birdies on his front nine before two bogeys in his final five holes.

Tokyo Olympics gold medallist Xander Schauffele and 2020 Masters champion Dustin Johnson are also four under.

A bleach-blonde Brooks Koepka had two bogeys and four birdies to be two under, alongside three-time major winner Jordan Spieth and 2020 US Open champion Bryson DeChambeau.

The United States claimed the Ryder Cup at Whistling Straits as they defeated Europe by a record margin with a 19-9 triumph on Sunday.

Padraig Harrington's side had won seven of the past nine editions of the biennial event but failed to recover from a six-shot disadvantage heading into the final day.

USA required just 3.5 points to claim the trophy on home soil, and they managed to reach that mark in just the fifth match of the finale as Collin Morikawa finished all square with Victor Hovland.

Europe had early hope through Rory McIlroy, who cruised past Xander Schaffuele to collect his first win at this year's edition but Patrick Cantlay quickly restored USA's dominance by defeating Shane Lowry.

Fellow rookie Scottie Scheffler enjoyed a magnificent singles debut, overcoming world number one Jon Rahm, before Bryson DeChambeau crushed Sergio Garcia with two holes to spare.

Morikawa and Hovland were neck-and-neck until the penultimate hole, where the former landed his iron shot within tap-in range to secure at least a half point and the trophy for the USA. Hovland won the last to halve their battle, but the Americans had the overall match in the bag.

Paul Casey chased Dustin Johnson but could not stop the two-time major champion from winning on the final hole to complete a 5-0-0 record, while Brooks Koepka eased past debutant Bernd Wiesberger despite a spirited performance from the Austrian.

Justin Thomas produced a dominant performance to demolish Tyrrell Hatton, while Lee Westwood - making his record 47th match appearance for Europe - picked up a consolation point against Harris English.

Ian Poulter also maintained his unbeaten record in singles matches to collect Europe's second win on the day, but that proved in vain, with Jordan Spieth and Tommy Fleetwood sharing the spoils as they both faltered on the 18th.

However, in the final pair, Daniel Berger edged past Matthew Fitzpatrick, who found the water at the last, as the USA defeated Europe by a record margin, surpassing the previous 18.5 to 9.5 win at Walton Heath Golf Club in 1981.

Shot of the day

Team USA were looking for a positive start to quash any suggestions of another repeat of the 'Miracle at Medinah' and DeChambeau provided exactly that in the fourth match of the day.

He comfortably reached the green with his drive on the par-four first, much to the delight of the Wisconsin crowd surrounding the tee box.

The world number seven could have claimed the 'shot of the day' tag with his drive, however, the subsequent 41-foot putt that followed to secure an eagle was both magnificent and important to place early pressure on the evergreen Garcia.

Player of the day

Scheffler, who was a Ryder Cup rookie and has yet to win on the PGA Tour, was sent out early and tasked with tackling world number one Rahm.

The American's rapid start, recording five birdies in the opening six holes, was enough to see off Rahm, who could not fight back from that point onwards and was finished off with three holes to go.

Sunday's singles win made it 2.5 points from a possible three, Scheffler unbeaten in the four-balls in a memorable debut in the Ryder Cup.

Chipping in

USA's winning captain Steve Stricker: "Speechless. Everything about it, these guys all came together. Two weeks ago they came together. Showed me a lot about this group of guys. They had a mission this week and you could tell, they played great and they came together. I just can't tell you - I mean, Brooks and Bryson wanted to play together; that's how much it came together. That shows a lot about this whole team."

Europe captain Padraig Harrington: "Of course we're disappointed. But the USA played well. Look, they out-played us, they are a strong team. They got their plan right. They got some momentum going. They started well. It's been good, no doubt about it. The fans were better - it's tough when you're going away and having no Europeans, but certainly above expectations in terms of an away crowd."

Rory McIlroy (on NBC): "I don't think there's any greater privilege to be a part of one of these teams, European or American. It's an absolute privilege. I've gotten to do this six times. They have always been the greatest experiences of my career. But this team, and what it feels like to be a part of, to see Sergio [Garcia] break records, to see Jon Rahm come into his own this week, to see one of my best friends, Shane Lowry, make his Ryder Cup debut. The more I play in this event I realise it's the best event in golf, bar none."

A little birdie told me...

Johnson entered this year's tournament with a 7-9 record in four previous appearances.

However, he made Ryder Cup history as he went 5-0-0, becoming just the fifth player to do so in a single Ryder Cup and the third since battles between Europe and the USA began in 1979. Previous matches saw teams from Great Britain, and Great Britain and Ireland, take on the Americans.

Johnson knew victory against Casey would see him etch his name in history, and he duly confirmed victory on the final hole, with the Englishman dragging his potential levelling putt wide.

Sunday's single results

Rory McIlroy (Eur) beat Xander Schauffele (USA) 3 and 2

Patrick Cantlay (USA) beat Shane Lowry (Eur) 4 and 2

Scottie Scheffler (USA) beat Jon Rahm (Eur) 4 and 3

Bryson DeChambeau (USA) beat Sergio Garcia (Eur) 3 and 2

Collin Morikawa (USA) tied Victor Hovland (Eur) A/S

Dustin Johnson (USA) beat Paul Casey (Eur) 1UP

Brooks Koepka (USA) beat Bernd Wiesberger (Eur) 2 and 1

Ian Poulter (Eur) beat Tony Finau (USA) 3 and 2

Justin Thomas (USA) beat Tyrrell Hatton (Eur) 4 and 3

Lee Westwood (Eur) beat Harris English (USA) 1UP

Jordan Spieth (USA) tied Tommy Fleetwood (Eur) A/S

Daniel Berger (USA) beat Matthew Fitzpatrick (Eur) 1UP

The 12 singles pairings for the final round of the Ryder Cup have been announced, with the United States looking to dethrone Europe on Sunday.

Team USA hold a commanding 11-5 lead following Saturday's foursomes and four-ball at Whistling Straits, where the hosts boast the biggest two-day advantage since 1975.

Steve Stricker's USA require just 3.5 points to reclaim the cup from Europe, who will need to produce the biggest ever comeback if they are to claim the required nine points to defend their crown.

"That was an important one," Stricker said after USA split the four afternoon matches. "If they blank us, they're right back in the game. I think getting two points and splitting the session is a good outcome for us."

Xander Schauffele will lead the Americans out to start Sunday's play in Wisconsin, facing struggling European star Rory McIlroy.

McIlroy was dropped for Saturday's foursomes having struggled on Friday – the first time in the four-time major champion's Ryder Cup career that he has missed a session. He returned for the four-ball but fell to another defeat alongside Ian Poulter against Dustin Johnson and Collin Morikawa 4 and 3.

The second matchup pits USA's Patrick Cantlay against Shane Lowry, while Europe captain Padraig Harrington put world number one Jon Rahm down to face Scottie Scheffler.

Bryson DeChambeau and European star Sergio Garcia meet in match four, American Collin Morikawa tackles Viktor Hovland and unbeaten USA veteran Johnson plays Paul Casey.

Elsewhere, Brooks Koepka is set to tee off against Bernd Wiesberger, Poulter and Tony Finau go head-to-head, Justin Thomas will clash with Tyrrell Hatton, Lee Westwood goes up against Harris English, Jordan Spieth faces Tommy Fleetwood and the final matchup is a showdown between Daniel Berger and Matt Fitzpatrick.

Bryson DeChambeau insisted the job is not over for the United States after racing clear of Europe on day one in their quest to wrestle back the Ryder Cup.

Team USA have their biggest opening-day lead at the Ryder Cup since 1975 thanks to a dominant start – DeChambeau and his team-mates earning a commanding 6-2 advantage on Friday.

Ryder Cup holders Europe struggled for answers at Whistling Straits, where hosts USA starred in the morning foursomes and afternoon four-balls.

DeChambeau teamed up with Ryder Cup rookie Scottie Scheffler in the four-ball, halving their matchup against world number one Jon Rahm and Tyrrell Hatton.

Powerhouse DeChambeau hit an astonishing 417-yard drive on the 581-yard par-five fifth hole, setting up an eagle to put himself and Scheffler one up in their four-ball contest with Rahm and Hatton.

Reflecting on the team's red-hot start, DeChambeau told reporters: "Proud of the team. Super proud.

"They fought hard every single shot out there, from what I saw, and, again, looking back on it, this is a great start, but the job's not over. We have two more days. A lot more golf. And we cannot lose our mindset to win."

On DeChambeau's fifth-hole bomb, Scheffler added: "That was probably the most excited he's ever been on a golf course was on number five. That wind, we had it on one of our practice days, and we figured out what he needed to do, so to have an opportunity to do that in competition was amazing. I was jacked up for him as well.

"I think he pushed it a little bit, but he smashed it. So thankfully he pushed it just a touch. If he pulls that ball at all, it's weird, there are two towers behind the green, I can't even describe to you - they are like 250 or 200 yards right of where I'm trying to hit my drive, and it's crazy for him to be able to commit to that shot.

"I know he's very happy to make a three as well; if he made a five, he said he was probably going to go home. It was great. That was a good spark for us and good momentum for the rest of the day."

Tiger Woods is absent from this year's Ryder Cup as the 15-time major champion continues his recovery from the February high-speed car crash near Los Angeles that left him with serious leg injuries, and it remains to be seen whether he is capable of playing again on tour.

Despite not being among Team USA's Ryder Cup roster, the American superstar still had a telling influence on Friday, having reached out with a few words of encouragement.

Xander Schauffele revealed Woods sent a message on Thursday and Tony Finau elaborated on the text.

"Harry [Harris English] mentioned to me walking down number nine, like how cool it was that Tiger is so into it," Finau said during his post-round news conference. "I think that's the big thing is he's so invested in this team.

"He's not here physically, but you know, I think the gist of basically what he was saying was I'm cheering you guys on, I'm right there with you and go fight and make us proud.

"We were able to do that, and if TW's watching, thanks for that text, brother, I think it helps us a lot."

United States captain Steve Stricker has selected Jordan Spieth and Xander Schauffele among his wildcard picks for the Ryder Cup, but there is no place for Patrick Reed on the 12-player roster.

Spieth will appear at the biennial competition for a fourth time in a row, while Schauffele is set to make his debut against Europe in next month's tournament at Whistling Straits after recently winning Olympic gold.

Schauffele was one of three rookies chosen by Stricker on Wednesday along with Daniel Berger, Harris English and Scottie Scheffler, with Tony Finau – part of the USA side that lost in Paris three years ago – completing the captain's picks.

Speaking at a news conference to announce his final selection, Stricker said: "All six of these guys have been playing some really good golf for a long period of time. 

"It's more about a body of work. They have all played great throughout this year and very well deserving of these picks."

The top-six qualifiers – Collin Morikawa, Dustin Johnson, Bryson DeChambeau, Brooks Koepka, Justin Thomas and Patrick Cantlay – had already locked in spots for the USA, who are seeking to regain the trophy after that 17.5-10.5 loss in 2018.

Reed is the most notable name overlooked by Stricker, the 31-year-old having featured in every American team since 2014. 

He made his return from a month-long absence at last week's Tour Championship after being hospitalised with pneumonia in both lungs.

Asked to explain his decision to overlook Reed, who top-scored for USA in their 2016 victory at Hazeltine, Stricker said: "That was a very, very difficult call. I lost sleep over that one. 

"He's a tremendous competitor, he brings a lot of match play golf and his record at the Ryder Cup is pretty darn good.

"I think it was the uncertainty of his health and the lack of play that led to our decision down the stretch."

Team Europe captain Padraig Harrington will announce his final three picks on Sunday.

The 121st edition of the U.S. Open takes place at Torrey Pines, a course that previously staged the major in 2008.

Tiger Woods famously triumphed in a dramatic play-off against Rocco Mediate 13 years ago, battling through the pain of a knee injury to secure the trophy for a third time. It was his 14th major triumph, but few would have predicted he would have to wait a further 11 years to add to his collection.

Woods will not be part of the field this week, but reigning champion Bryson DeChambeau will hope to match the feat of Brooks Koepka – winner in 2017 and 2018 – by defending his title.

Besides those two rivals, who else could be in contention for success in California? Time to get out the crystal ball…

LOVE HIM OR HATE HIM, REED CAN TOP THE BILLING AGAIN – Peter Hanson

A divisive figure he may be (even among his own Ryder Cup team-mates), but there is no doubting Patrick Reed's skills on the course. Moreover, he was a winner at Torrey Pines only five months ago at the Farmers Insurance Open – doing so by a convincing five-shot margin.

Four top-10 finishes have followed since, including at the Masters and his most recent tournament the Memorial. At that latter event, he led the field in scrambling and par-three scoring and Reed is tied-sixth for top-10 finishes on the PGA Tour this season. His scoring average of 70.039 is tied 11th and it would be no surprise to see him in contention for a second major this weekend.

XANDER TO 'SCHAUFFELE' OFF WITH TROPHY – Rob Lancaster

Californian Xander Schauffele should feel right at home at Torrey Pines, a venue where he has not always excelled but did finish in a tie for second at this year’s Farmers Insurance Open back in January. He has not won on the PGA Tour since January 2019, though only a play-off defeat denied him retaining the Sentry Tournament of Champions title the following year.

Crucially, the 27-year-old has a track record of doing well in this major. Since 2017, he has not finished outside the top six, including ending up in a four-way tie for third place at Pebble Beach in 2019 when Gary Woodland triumphed. Indeed, an American has been crowned champion in the past six editions – this year could see Schauffele hit another home run.

RAHM THE MAN FOR THIS MAJOR – Benjamin Spratt

Jon Rahm is a man in form heading into this event. Perhaps. It is slightly difficult to gauge exactly how the Spaniard is shaping up, having just recovered from COVID-19, but he was flying the last time we saw him on a golf course. Rahm led by six shots at the Memorial Tournament when he was remarkably required to withdraw following a positive test result.

The premature end to that event will not have hit Rahm's confidence, though, and the 26-year-old should not be lacking in that department heading to Torrey Pines. His first PGA Tour title came on the South Course at the 2017 Farmers Insurance Open, while he was a runner-up at the same event three years later.

IN-FORM CANTLAY CAN LEAD THE WAY – Jonathan Wright

An outside bet perhaps but one certainly worth considering, Patrick Cantlay shot up to number seven in the world after winning the Memorial Tournament in a play-off with Collin Morikawa this month.

That triumph may have come after Rahm had to withdraw, but Cantlay topped a strong field with his best performance of a season in which he has won two PGA Tour titles, claimed five top-10 finishes and leads the way in the FedEx Cup standings. The combination of good form and playing on the home should give the Californian great confidence.

FINAU WILL FINALLY END HIS WAIT – Russell Greaves

Tony Finau is a perennial contender at the majors and it's high time he finally got his hands on a title.

The omens bode well for the 31-year-old, who has 10 top-10 finishes in majors. Finau claimed was among the top 10 at the Farmers Insurance Open in 2017, 2018 and 2020 before ending as joint runner-up this year. He obviously enjoys this course.

He is carrying solid form into this one, too, having earned seven finishes inside the top 10 on tour this season.

Tiger Woods began his U.S. Open bid with a double bogey in 2008 at Torrey Pines – "a terrible start", said the man who four days later took the title in a sudden-death play-off, after he and Rocco Mediate could not be separated in a two-man fifth round.

The 18-hole play-off scenario is now history, so there will no repeat of such a marathon effort as the major returns after 13 years to the San Diego course this week, and there will be no Woods either.

That 2008 triumph was a 14th major for the American, yet he had to wait another 11 years until the 15th arrived, the man who once seemed booked in to take the major titles record away from Jack Nicklaus having seen perceptions of his life switch from fairy tale to soap opera.

Woods in 2008 was privately fighting the pain of a double stress fracture of his left tibia that he kept under wraps. Yes, he won the U.S. Open with a broken leg.

Whoever lifts the trophy this Sunday is unlikely to have to overcome the tribulations that faced Woods across that long weekend, and the superstar's absence is sure to be felt ... until the first round begins to take shape and a new narrative plays out.

Back in 2008, tournament organisers upped the intrigue by grouping Woods, Phil Mickelson and Adam Scott – the world number one, two and three – together for the opening two rounds.

Local favourite Mickelson recalls the moment when Woods fluffed his opening hole.

"I thought that was pretty inspiring the way he didn't let that affect him," Mickelson said this week. "He stayed to his game plan, stayed focused, stayed patient, and ended up kind of picking his spots where he could get a shot back here or there, and he did, and he ended up winning. That's impressive."

After completing his opening round, Woods said his mindset after shooting six at the first was to "just be patient, long way to go", and he finished one over par.

By the end of day two, Woods stood tied for second place, with Mickelson and Scott in a group sharing 35th position.

"The atmosphere for the whole 36 holes that I played with Phil and Tiger was incredible," Scott recalled earlier this year. "But Thursday morning the energy around the first hole was like I can't compare it to anything else actually.

"It was not even like teeing off at the Masters or anything like that. The build-up ... Tiger obviously being Tiger and Phil, the local hero, one, two and three in the world, of course I was like the third wheel hanging off the back, but it was really fun to be a part of that."

Of course Woods is a once-a-generation talent, but should anyone make a similarly poor start this week, it would be wise to take the blow on the chin and move on.

This course, the long-time home of the annual Farmers Insurance Open, should reward a steady temperament.

Mickelson, fresh from his shock victory last month at the US PGA Championship, where he became the oldest winner of a major, described the Torrey Pines greens on Monday as "very challenging".

"There's a lot of pitch, a lot of contour, and as they get firmer, they're significantly firmer than just the last two days," he said.

"It's very difficult to get it to some of the pin positions, and it's going to be a difficult test. As long as it is at sea level it's going to be a difficult task, but it seems like the set-up is pristine, and it's going to be a fun, very difficult challenge."

WHO WILL WIN THIS TIME?

With Woods out of the picture, recovering from the car crash he was said to have been fortunate to survive in February, there will be no repeat of his famous success 13 years ago.

Woods has won the Farmers Insurance Open a record seven times too, so he would have been relishing this week. Brandt Snedeker and Jason Day are both two-time winners of that tournament, and Mickelson has been champion three times, but not since 2001.

Mickelson is seeking the trophy that would give him a career grand slam, but it seems fanciful to expect him to challenge, having rarely been a factor in the majors in recent years until his unexpected win at Kiawah Island.

Stats Perform has taken a combination of factors to build a list of potential contenders, assessing past performance at the Farmers Insurance Open but also weighting displays in majors and recent PGA Tour form.

These scores are built around performance at Torrey Pines from 2016 to this year.

In the calculations, top-10 finishers at the 2021 Farmers Insurance Open receive points on a scale from 15 for the champion down to six points for 10th place. This decreases on a year-by-year sliding scale to 10 points for the 2016 tournament winner and one point for 10th place in that event.

There is also two points awarded per top-10 finish on the PGA Tour in the 2021 season, and substantial points availability for recent major success (10 points per major title in 2020 and 2021, 8pts in 2019, 6pts in 2018, 4pts in 2017, 2pts in 2016).

Not all players in the U.S. Open field have played the Farmers Insurance Open each year, and some are rarely active, if at all, on the PGA Tour, but this may give an inkling of the players who could come into contention at the year's third major.

TONY FINAU, 52 points: Finau followed up three top-10 results at the Farmers (2017, 2018, 2020) by finishing a joint runner-up in 2021, pointing to a clear liking for the course. How he enjoys it later in the year than he usually encounters Torrey Pines remains to be seen. Finau also has seven top-10 finishes of tour in the 2021 season.

JON RAHM, 52 points: His first major title is arguably overdue, given his talent and week-by-week results. Rahm was Farmers champion in 2017 and runner-up in 2020, also finishing top 10 in 2019 and 2021. He has a tour-leading 10 top-10 finishes this season, and would surely have had a win at the Memorial Tournament earlier this month before a positive COVID-19 test ended his title charge after 54 holes.

PATRICK REED, 42pts: This year's champion at the Farmers Insurance Open, Reed was also top six there in 2020, has had six top-10 results on tour this season and landed a Masters title in his not-too-distant past.

RYAN PALMER, 33pts: Palmer tied for second earlier this year at Torrey Pines, just as he did in 2018. Those performances and his four top-10 finishes on tour this year make him perhaps the surprise name on this list.

BROOKS KOEPKA, 32pts: Koepka missed the cut this year at the Farmers and did the same in 2017, and he did not play the tournament in the intervening years. Although Koepka has little left to prove in a wider sense – his mountain of points here is accrued through past major wins and a healthy batch of top-10s this season – he has yet to master Torrey Pines. Koepka has also missed the cut at three of his most recent four tournaments this year.

RORY MCILROY, 31pts: Top-five finishes at the Farmers in 2019 and 2020 augur well for McIlroy, and his five top-10 finishes on tour this season is a tally he will aim to add to over the coming days. It may be asking a lot to expect him to carry off the title, but another high placing would seem realistic.

Next on the list: Justin Rose (30pts), Brandt Snedeker (29), Viktor Hovland (26), Xander Schauffele (26), Jason Day (25), Marc Leishman (25), Hideki Matsuyama (25) and Keegan Bradley (24).

Louis Oosthuizen and Charl Schwartzel turned in a nine-under 63 in four-ball play to take the lead after the third round of the Zurich Classic of New Orleans. 

The South African duo are 19-under for the tournament and were one of six teams to record a 63, vaulting them past second-round leaders Tony Finau and Cameron Champ by a stroke. 

Australians Marc Leishman and Cameron Smith also shot nine-under and are tied for second with the American pair. 

The top of the leaderboard at TPC Louisiana is crowded, with Bubba Watson and Scottie Scheffler sitting two shots back along with first-round leaders Viktor Hovland and Kris Ventura. 

The tournament, which switched to a team event in 2017, features four-ball in the first and third rounds and foursomes in the second and fourth. 

Three teams are at 16 under and nine more at 15 under, with the latter group including defending champions Jon Rahm and Ryan Palmer. 

The shot of the day belonged to Sam Ryder, who holed a five iron from 206 yards at No. 2 for a double eagle -- the first at the tournament since Rob Oppenheim did it in 2018.

Justin Rose mounted a back-nine recovery to finish his second round with a two-shot lead over Jordan Spieth and Marc Leishman.

Rose shot a sublime opening round of 65 at Augusta, but relinquished his four-shot advantage on Friday before returning to the top of the leaderboard with three birdies in his space of four holes.

The Englishman was the man to catch on seven under when he signed for a level-par 72, rallying after bogeying four of the first seven holes in his second round.

Gains at the 13th, 14th and 16th holes gave Rose momentum heading into the weekend as he bids to don the green jacket for the first time.

The in-form Spieth surged into a share of second place with Australian Leishman by carding a four-under 68, with birdies proving easier to come by for the field than on the opening day.

Three-time major champion Spieth, on a high after ending a title drought stretching back to 2017 at the Texas Open last weekend, made four of his five birdies after the turn and only dropped one shot at the 12th.

Leishman also made a significant move, setting the tone by starting with three birdies in row and going on to shoot a five-under 67.

Scintillating six-under rounds of 66 from Bernd Wiesberger and Tony Finau put them just three shots adrift of Rose along with Justin Thomas, who shot a 67.

Will Zalatoris, Brian Harman and Si Woo Kim were also well poised on four under, with their rounds still in progress. Defending champion Dustin Johnson had work to do back on three over through 10.

Bryson DeChambeau responded to a poor opening round with a 67 of his own to sit at one over, while Brooks Koepka (+5) and Rory McIlroy (+6) were facing a battle to make the cut 10 and eight holes into their rounds respectively.

Lee Westwood was a couple of shots below the projected cut mark on five over midway through his round.