The men's 100 metre breaststroke at the 2007 World Aquatics Championships took place on 25 March and on the evening of 26 March (final) at Rod Laver Arena in Melbourne, Australia. 123 swimmers were entered in the event, of which 117 swam.
Yuliya Andreyevna Yefimova is a Russian competitive swimmer. She is the Russian record holder in the 200 metre individual medley, 50 metre breaststroke, 100 metre breaststroke, and 200 metre breaststroke. After making her Olympic debut in 2008, she went on to win the bronze medal in the 200 metre breaststroke in 2012, and silver medals in the 100 metre and 200 metre breaststroke in 2016. She is a six-time World Champion, winning the 50 metre breaststroke in 2009 and 2013, the 100 metre breaststroke in 2015, and the 200 metre breaststroke in 2013, 2017, and 2019. In 2019, she became the first woman to win the 200 metre breaststroke at a FINA World Aquatics Championships three times. She is a former world record holder in the long course 50 metre breaststroke. She has won 109 medals, including 48 gold medals, at Swimming World Cups.
Alia Shanee Atkinson, СD is a Jamaican five-time Olympian and a former competitive swimmer whose international competition career spanned 19 years, 2003 to 2021 inclusive, at the senior level. At short course World Swimming Championships, she is a ten-time medalist in individual events, including four gold medals, four silver medals, and two bronze medals. She won a total of 124 medals, of which 74 were gold medals, at Swimming World Cup circuits over the course of her career. She won 14 total medals in individual events, 11 gold, 1 silver, and 2 bronze, from her first three Central American and Caribbean Games, in 2006, 2010, and 2018.
The Women's 50 Breaststroke at the 10th FINA World Swimming Championships (25m) was swum 15–16 December 2010 in Dubai, United Arab Emirates. The heats and semifinals were swum 15 December; the final on 16 December.
The Men's 100 Backstroke at the 10th FINA World Swimming Championships (25m) was swum 15–16 December 2010 in Dubai, United Arab Emirates. On 15 December, 73 individuals swam in the Preliminary heats in the morning, with the top-16 finishers advancing on to the Semifinals that evening. The top-8 finishers in the Semifinals then advanced on to the Final the next evening.
The Men's 100 Butterfly at the 10th FINA World Swimming Championships (25m) was swum 15–16 December 2010 in Dubai, United Arab Emirates. On 15 December, 92 individuals swam the Preliminary heats in the morning, with the top-16 finishers advancing to the Semifinals that evening. The top-8 finishers from the Semifinal then advanced to the Final then next evening.
The Men's 100 Breaststroke at the 10th FINA World Swimming Championships (25m) was swum 15–16 December 2010 in Dubai, United Arab Emirates. On 15 December, 85 individuals swam in the Preliminary heats in the morning, with the top-16 finishers advancing to swim again in the Semifinals that night. The top-8 finishers from the Semifinals then advanced to swim in the Final the next evening.
The Women's 200 Backstroke at the 10th FINA World Swimming Championships (25m) was swum on 17 December 2010 in Dubai, United Arab Emirates. 36 swimmers swam in the preliminary heats, with the top-8 advancing to a final that evening.
The Men's 200 Breaststroke at the 10th FINA World Swimming Championships (25m) was swum 17 December. 57 individuals swam in the Preliminary heats in the morning, with the top-8 finishers advancing to the Final in the evening.
Ilya Syarheyevich Shymanovich is a Belarusian swimmer. He is the world record holder in the short course 100 metre breaststroke and a former world record holder in the short course 50 metre breaststroke. At the 2018 World Championships he won two silver medals, one each in the 100 metre breaststroke and the 50 metre breaststroke. He won two gold medals, one in the 50 metre breaststroke and one in the 200 metre breaststroke, and a silver medal, in the 100 metre breaststroke, at the 2021 European Short Course Championships. At the 2021 World Short Course Championships he won the gold medal in the 100 metre breaststroke.
Benedetta Pilato is an Italian swimmer. She is the world record holder in the long course 50 metre breaststroke. She is the European champion in the 50 metre breaststroke in 2021 and the 100 metre breaststroke in 2022 as well as the silver medalist in the 50 metre breaststroke in 2022. In 2021, she won a silver medal in the 50 metre breaststroke at the 2021 World Short Course Championships. She is the world champion in the 100 metre breaststroke and the silver medal in the 50 metre breaststroke at the 2022 World Aquatics Championships.
Rebecca Soni, (Manchester, UK, 19 December 2009)
United States 
