Another day, another speed-skating gold medal for the Netherlands at the Winter Olympics.

The Dutch are dominating at the National Speed Skating Oval, winning four of five titles so far, and Irene Schouten is now a double champion in Beijing after adding the 5,000 metres to her 3,000m gold. She became the fifth woman in history to pull off that double.

So far, the Netherlands have totted up four gold medals, two silver and a bronze in speed skating, drawing the ire of Sweden's Nils van der Poel.

Van der Poel, who won the men's 5,000m on Sunday, claimed subsequently that the Dutch are being allowed to bring undue influence to the ice conditions, describing that as "corruption" and "the biggest scandal in our sport".

Netherlands technical director Maurits Hendriks rejected the claims from Van der Poel, saying: "We are really disappointed that Sweden didn't reach out. We feel that before you make statements like this it is good to have a one-on-one chat. We have nothing to hide."

Schouten set an Olympic record of six minutes and 43.51 seconds to land her second gold of the Games on Thursday, with the team pursuit and mass start events still to come.

"Of course, I hope to win [gold] medals in those events as well," said Schouten, "but those are more difficult to win because you're depending on others."

Canadian silver medallist Isabelle Weidemann roared her approval for the champion, saying: "Schouten is incredible. I wanted to cheer for her. She takes the level up so much."

There were plenty of other stars breaking records and posting remarkable achievements, and Stats Perform looks here at the numbers behind their stories.

21 - American Chloe Kim followed her halfpipe title in Pyeongchang with more glory in Beijing, becoming the sixth snowboarder to defend an individual title, and only the third woman, after compatriot Jamie Anderson and Czech star Ester Ledecka. Kim, 21, also became the first United States competitor to win multiple gold medals at the Winter Olympics before turning 22 since Eric Heiden won five gold medals in speed skating in 1980 at Lake Placid. Heiden was also 21 at the time and later became a world-class cyclist, riding the 1986 Tour de France.

1988 - Johannes Strolz was born four years after his father, Hubert, triumphed in the men's Alpine combined at the 1988 Winter Olympics in Calgary. On Thursday, Austrian 29-year-old Strolz followed his dad into the Games history books, also winning the Alpine combined. It makes Johannes and Hubert the first parent and child to win the same individual event at the Winter Olympics.

50 - Norway now have 50 Olympic gold medals in cross-country skiing, the first national association to reach the landmark in a single sport at the Winter Games. That is because Therese Johaug won her second gold in Beijing, adding the 10km classic to her skiathlon success. Johaug, who also won women's relay gold at the 2010 Games, joins cross-country skier Marit Bjoergen (eight) and figure skater Sonja Henie (three) as the only Norwegian women to win at least three gold medals at the Winter Olympics.

8 - When it comes to men's figure skating, USA take some beating. Nathan Chen became the seventh US star to win gold in men's single skating. Dick Button began the run of success in 1948 and 1952, and the USA have eight gold medals and 16 medals overall in the event, putting them top of that particular all-time medal table. Eight golds in a single discipline is now also a US record for any event at the Winter Olympics, ahead of women's singles figure skating and men's 500m speed skating (both seven).

24 - The USA had not won a gold medal in freeski aerials since 1998, when they won the men's and women's individual events, but they ended a 24-year wait with glory in the inaugural mixed team aerials. Ashley Caldwell, Christopher Lillis and Justin Schoenefeld fended off China, with Lillis landing a quintuple twisting triple for a score of 135 points, the best yet of the Games on the aerials course.