Swimming at the 2020 Tokyo Games will comprise 37 medal events. The programs for men and women are identical, with both genders swimming the following strokes/distances:
- 50m Freestyle
- 100m Freestyle
- 200m Freestyle
- 400m Freestyle
- 800m Freestyle
- 1500m Freestyle
- 100m Backstroke
- 200m Backstroke
- 100m Breaststroke
- 200m Breaststroke
- 100m Butterfly
- 200m Butterfly
- 200m Individual Medley
- 400m Individual Medley
- 4x100m Freestyle Relay
- 4x200m Freestyle Relay
- 4x100m Medley Relay
- 10km Open Water
New for Tokyo is the mixed 4x100m medley relay. The order of strokes is backstroke, breaststroke, butterfly and freestyle. Teams can choose from either gender for a given stroke, but must have two male and two female swimmers.
The most prolific medal winner in Olympic history is Michael Phelps, who won 28 total medals (23 gold, 3 silver, 2 bronze) in swimming from 2004 through 2016.
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