Freestyle: 50, 100, 200, 400, 800 (women), and 1,500 (men) Backstroke: 100 and 200 Breaststroke: 100 and 200 Butterfly: 100 and 200 Individual medley: 200 and 400 Relays: 4×100 free, 4×200 free; 4×100 medley. Marathon: 10 kilometers.
What's the longest swimming race in the Olympics?
A relay race is a track and field event in which athletes run a pre-set distance carrying a baton before passing it onto the next runner.
