Swimming is a skillful sport. There are four strokes in swimming. Butterfly, Backstroke, Breaststroke and Frontcrawl. There is another race called a medley which consists of all the four strokes.

Michael Phelps Michael Phelps
Age: 27
DOB: June 30, 1985
Height: 6ft 3in (193 cm)
Weight: 88 kg
Kosuke Kitajima Kosuke Kitajima
Age: 30
DOB: September 22, 1982
Height: 5ft 10in (178cm)
Weight: 73 kg
Swimming is an Olympic sport and American Michael Phelps holds the distinction of winning the most Olympic Gold medals in an Olympics with 8. Beating German Mark Spitz's 7.

Michael Phelps is the most decorated Olympian of all time with 22 medals. 18 of them are gold.
Ireland's Olympic Swimming team in 2012 consisted of Barry Murphy, Syreika McMahon, Melenie Nocher and Grainne Murphy(who didn't swim all of her events due to an illness).