1. 1You race in a lane.
2. 2Each stroke has its own rules. Freestyle, backstroke, breaststroke, and butterfly are the main ones.
3. 3You must touch the wall at each turn.
4. 4You start when the starter says go.

Score. The clock times your swim. First to touch the wall is ahead.

Win. The first swimmer to touch the wall wins the race.

An Olympic pool is 50 metres long.