World Aquatics has revealed the complete swimming schedule for the 2025 World Championships in Singapore. The swimming portion of the six-sport competition runs from July 27 – August 3.
The main changes to the swimming schedule come during the back half of the meet. World Aquatics has separated the men’s 200 IM final and the men’s 200 breaststroke final on Day Five, which makes the double easier for the 200 IM/200 breaststrokers, including Leon Marchand, the reigning Olympic champion in both events.
Marchand avoided this double at the 2022 and 2023 World Championships. Instead, he opted for the 200 butterfly final/200 IM semifinals double on Day Four. That double remains unchanged on the 2025 Worlds schedule.
| 2025 Worlds — Day Five Finals Schedule | 2024 Worlds — Day Five Finals Schedule |
| Women’s 200 Butterfly Final | Women’s 200 Butterfly Final |
| Women’s 100 Freestyle Semifinals | Women’s 100 Freestyle Semifinals |
| Men’s 200 IM Final | Men’s 100 Freestyle Final |
| Men’s 100 Freestyle Final | Women’s 50 Backstroke Final |
| Women’s 200 Breaststroke Semifinals | Men’s 200 Breaststroke Semifinals |
| Women’s 50 Backstroke Final | Men’s 200 IM Final |
| Men’s 200 Breaststroke Semifinals | Women’s 200 Breaststroke Semifinals |
| Men’s 200 Backstroke Semifinals | Men’s 200 Backstroke Semifinals |
| Women’s 4×200 Free Relay Final | Women’s 4×200 Free Relay Final |
The men’s 200 IM final is now before the 200 breaststroke semifinals as organizers moved the 200 IM to be the third event of the finals session after the women’s 200 butterfly final and women’s 100 freestyle semifinals. Organizers have reordered the events that now follow the men’s 200 IM final, moving the women’s 200 breaststroke semifinals before the women’s 50 backstroke final and men’s 200 breaststroke semifinals.
While this move gives a swimmer like Marchand more time between his double, Kate Douglass will have less time between the women’s 100 freestyle and 200 breaststroke semifinals, should she decide to pursue that double again. When she did the double at the 2024 World Championships, she took fourth in the 100 freestyle and then earned silver in the 200 breaststroke.
It’s a trade-off though, because while there’s less time for Douglass between those semifinals, organizers have reordered the Day Six finals schedule in a way that gives her more time between the two finals. In Doha, the 200s of stroke finals went women’s 200 breaststroke final, men’s 200 backstroke final, and men’s 200 breaststroke final. Organizers have switched the women’s and men’s 200 breaststroke final, which means there are five events between the women’s 100 free and 200 breaststroke finals as opposed to the three events between them in 2024.
| 2025 Worlds — Day Six Finals Schedule | 2024 Worlds — Day Six Finals Schedule |
| Women’s 100 Freestyle Final | Women’s 100 Freestyle Final |
| Men’s 100 Butterfly Semifinals | Men’s 100 Butterfly Semifinals |
| Women’s 200 Backstroke Semifinals | Women’s 200 Backstroke Semifinals |
| Men’s 50 Freestyle Semifinals | Men’s 50 Freestyle Semifinals |
| Men’s 200 Breaststroke Final | Women’s 200 Breaststroke Final |
| Men’s 200 Backstroke Final | Men’s 200 Backstroke Final |
| Women’s 200 Breaststroke Final | Men’s 200 Breaststroke Final |
| Women’s 50 Butterfly Semifinals | Women’s 50 Butterfly Semifinals |
| Men’s 4×200 Free Relay Final | Men’s 4×200 Free Relay Final |
The final change from the 2024 schedule to 2025 is that organizers have flipped the women’s 50 freestyle final and the men’s 1500 freestyle final on Day Eight, the last day of competition. The men’s 400 IM final remains on the last day of the meet after it was brought forward to the first day for the 2022 and 2023 editions of the World Championships.
World Championships Schedule Comparison, 2023-2025
Note: Shifted events on the 2025 schedule are in bold
| 2025 | 2024 | 2023 | |
| Day 1 | Women’s 200 IM Heats | Women’s 200 IM Heats | Women’s 200 IM Heats |
| Men’s 400 Freestyle Heats | Men’s 400 Freestyle Heats | Men’s 400 Freestyle Heats | |
| Women’s 100 Butterfly Heats | Women’s 100 Butterfly Heats | Women’s 100 Butterfly Heats | |
| Men’s 50 Butterfly Heats | Men’s 50 Butterfly Heats | Men’s 50 Butterfly Heats | |
| Women’s 400 Freestyle Heats | Women’s 400 Freestyle Heats | Women’s 400 Freestyle Heats | |
| Men’s 100 Breaststroke Heats | Men’s 100 Breaststroke Heats | Men’s 100 Breaststroke Heats | |
| Women’s 4×100 Free Relay Heats | Women’s 4×100 Free Relay Heats | Men’s 400 IM | |
| Men’s 4×100 Free Relay Heats | Men’s 4×100 Free Relay Heats | Women’s 4×100 Free Relay Heats | |
| Men’s 4×100 Free Relay Heats | |||
| Men’s 400 Freestyle Final | Men’s 400 Freestyle Final | Men’s 400 Freestyle Final | |
| Women’s 100 Butterfly Semifinals | Women’s 100 Butterfly Semifinals | Women’s 100 Butterfly Semifinals | |
| Men’s 50 Butterfly Semifinals | Men’s 50 Butterfly Semifinals | Men’s 50 Butterfly Semifinals | |
| Women’s 400 Freestyle Final | Women’s 400 Freestyle Final | Women’s 400 Freestyle Final | |
| Men’s 100 Breaststroke Semifinals | Men’s 100 Breaststroke Semifinals | Men’s 100 Breaststroke Semifinals | |
| Women’s 200 IM Semifinals | Women’s 200 IM Semifinals | Women’s 200 IM Semifinals | |
| Women’s 4×100 Free Relay Final | Women’s 4×100 Free Relay Final | Men’s 400 IM Final | |
| Men’s 4×100 Free Relay Final | Men’s 4×100 Free Relay Final | Women’s 4×100 Free Relay Final | |
| Men’s 4×100 Free Relay Final | |||
| Day 2 | Women’s 100 Backstroke Heats | Women’s 100 Backstroke Heats | Women’s 100 Backstroke Heats |
| Men’s 100 Backstroke Heats | Men’s 100 Backstroke Heats | Men’s 100 Backstroke Heats | |
| Women’s 100 Breaststroke Heats | Women’s 100 Breaststroke Heats | Women’s 100 Breaststroke Heats | |
| Men’s 200 Freestyle Heats | Men’s 200 Freestyle Heats | Men’s 200 Freestyle Heats | |
| Women’s 1500 Freestyle Heats | Women’s 1500 Freestyle Heats | Women’s 1500 Freestyle Heats | |
| Men’s 100 Breaststroke Final | Men’s 100 Breaststroke Final | Men’s 100 Breaststroke Final | |
| Women’s 100 Butterfly Final | Women’s 100 Butterfly Final | Women’s 100 Butterfly Final | |
| Men’s 100 Backstroke Semifinals | Men’s 100 Backstroke Semifinals | Men’s 100 Backstroke Semifinals | |
| Women’s 100 Breaststroke Semifinals | Women’s 100 Breaststroke Semifinals | Women’s 100 Breaststroke Semifinals | |
| Men’s 50 Butterfly Final | Men’s 50 Butterfly Final | Men’s 50 Butterfly Final | |
| Women’s 100 Backstroke Semifinals | Women’s 100 Backstroke Semifinals | Women’s 100 Backstroke Semifinals | |
| Men’s 200 Freestyle Semifinals | Men’s 200 Freestyle Semifinals | Men’s 200 Freestyle Semifinals | |
| Women’s 200 IM Final | Women’s 200 IM Final | Women’s 200 IM Final | |
| Day 3 | 50 Breaststroke Heats | Men’s 50 Breaststroke Heats | Men’s 50 Breaststroke Heats |
| Women’s 200 Freestyle Heats | Women’s 200 Freestyle Heats | Women’s 200 Freestyle Heats | |
| Men’s 200 Butterfly Heats | Men’s 200 Butterfly Heats | Men’s 200 Butterfly Heats | |
| Men’s 800 Freestyle Heats | Men’s 800 Freestyle Heats | Men’s 800 Freestyle Heats | |
| Men’s 200 Freestyle Final | Men’s 200 Freestyle Final | Men’s 200 Freestyle Final | |
| Women’s 1500 Freestyle Final | Women’s 1500 Freestyle Final | Women’s 1500 Freestyle Final | |
| Men’s 50 Breaststroke Semifinals | Men’s 50 Breaststroke Semifinals | Men’s 50 Breaststroke Semifinals | |
| Women’s 100 Backstroke Final | Women’s 100 Backstroke Final | Women’s 100 Backstroke Final | |
| Men’s 100 Backstroke Final | Men’s 100 Backstroke Final | Men’s 100 Backstroke Final | |
| Women’s 200 Freestyle Semifinals | Women’s 200 Freestyle Semifinals | Women’s 200 Freestyle Semifinals | |
| Men’s 200 Butterfly Semifinals | Men’s 200 Butterfly Semifinals | Men’s 200 Butterfly Semifinals | |
| Women’s 100 Breaststroke Final | Women’s 100 Breaststroke Final | Women’s 100 Breaststroke Final | |
| Day 4 | Women’s 50 Backstroke Heats | Women’s 50 Backstroke Heats | Women’s 50 Backstroke Heats |
| Men’s 100 Freestyle Heats | Men’s 100 Freestyle Heats | Men’s 100 Freestyle Heats | |
| Men’s 200 IM Heats | Men’s 200 IM Heats | Men’s 200 IM Heats | |
| Women’s 200 Butterfly Heats | Women’s 200 Butterfly Heats | Women’s 200 Butterfly Heats | |
| Mixed 4×100 Medley Relay Heats | Mixed 4×100 Medley Relay Heats | Mixed 4×100 Medley Relay Heats | |
| Men’s 800 Freestyle Final | Men’s 800 Freestyle Final | Men’s 800 Freestyle Final | |
| Women’s 200 Freestyle Final | Women’s 200 Freestyle Final | Women’s 200 Freestyle Final | |
| Men’s 100 Freestyle Semifinals | Men’s 100 Freestyle Semifinals | Men’s 100 Freestyle Semifinals | |
| Women’s 50 Backstroke Semifinals | Women’s 50 Backstroke Semifinals | Women’s 50 Backstroke Semifinals | |
| Men’s 200 Butterfly Final | Men’s 200 Butterfly Final | Men’s 200 Butterfly Final | |
| Men’s 50 Breaststroke Final | Men’s 50 Breaststroke Final | Men’s 50 Breaststroke Final | |
| Women’s 200 Butterfly Semifinals | Women’s 200 Butterfly Semifinals | Women’s 200 Butterfly Semifinals | |
| Men’s 200 IM Semifinals | Men’s 200 IM Semifinals | Men’s 200 IM Semifinals | |
| Mixed 4×100 Medley Relay Final | Mixed 4×100 Medley Relay Final | Mixed 4×100 Medley Relay Final | |
| Day 5 | Women’s 100 Freestyle Heats | Women’s 100 Freestyle Heats | Women’s 100 Freestyle Heats |
| Men’s 200 Backstroke Heats | Men’s 200 Backstroke Heats | Men’s 200 Backstroke Heats | |
| Women’s 200 Breaststroke Heats | Women’s 200 Breaststroke Heats | Women’s 200 Breaststroke Heats | |
| Men’s 200 Breaststroke Heats | Men’s 200 Breaststroke Heats | Men’s 200 Breaststroke Heats | |
| Women’s 4×200 Free Relay Heats | Women’s 4×200 Free Relay Heats | Women’s 4×200 Free Relay Heats | |
| Women’s 200 Butterfly Final | Women’s 200 Butterfly Final | Women’s 200 Butterfly Final | |
| Women’s 100 Freestyle Semifinals | Women’s 100 Freestyle Semifinals | Women’s 100 Freestyle Semifinals | |
| Men’s 200 IM Final | Men’s 100 Freestyle Final | Men’s 100 Freestyle Final | |
| Men’s 100 Freestyle Final | Women’s 50 Backstroke Final | Women’s 50 Backstroke Final | |
| Women’s 200 Breaststroke Semifinals | Men’s 200 Breaststroke Semifinals | Men’s 200 Breaststroke Semifinals | |
| Women’s 50 Backstroke Final | Men’s 200 IM Final | Men’s 200 IM Final | |
| Men’s 200 Breaststroke Semifinals | Women’s 200 Breaststroke Semifinals | Women’s 200 Breaststroke Semifinals | |
| Men’s 200 Backstroke Semifinals | Men’s 200 Backstroke Semifinals | Men’s 200 Backstroke Semifinals | |
| Women’s 4×200 Free Relay Final | Women’s 4×200 Free Relay Final | Women’s 4×200 Free Relay Final | |
| Day 6 | Men’s 100 Butterfly Heats | Men’s 100 Butterfly Heats | Men’s 100 Butterfly Heats |
| Women’s 200 Backstroke Heats | Women’s 200 Backstroke Heats | Women’s 200 Backstroke Heats | |
| Men’s 50 Freestyle Heats | Men’s 50 Freestyle Heats | Men’s 50 Freestyle Heats | |
| Women’s 50 Butterfly Heats | Women’s 50 Butterfly Heats | Women’s 50 Butterfly Heats | |
| Men’s 4×200 Free Relay Heats | Men’s 4×200 Free Relay Heats | Men’s 4×200 Free Relay Heats | |
| Women’s 800 Freestyle Heats | Women’s 800 Freestyle Heats | Women’s 800 Freestyle Heats | |
| Women’s 100 Freestyle Final | Women’s 100 Freestyle Final | Women’s 100 Freestyle Final | |
| Men’s 100 Butterfly Semifinals | Men’s 100 Butterfly Semifinals | Men’s 100 Butterfly Semifinals | |
| Women’s 200 Backstroke Semifinals | Women’s 200 Backstroke Semifinals | Women’s 200 Backstroke Semifinals | |
| Men’s 50 Freestyle Semifinals | Men’s 50 Freestyle Semifinals | Men’s 50 Freestyle Semifinals | |
| Men’s 200 Breaststroke Final | Women’s 200 Breaststroke Final | Women’s 200 Breaststroke Final | |
| Men’s 200 Backstroke Final | Men’s 200 Backstroke Final | Men’s 200 Backstroke Final | |
| Women’s 200 Breaststroke Final | Men’s 200 Breaststroke Final | Women’s 50 Butterfly Semifinals | |
| Women’s 50 Butterfly Semifinals | Women’s 50 Butterfly Semifinals | Men’s 200 Breaststroke Final | |
| Men’s 4×200 Free Relay Final | Men’s 4×200 Free Relay Final | Men’s 4×200 Freestyle Relay Final | |
| Day 7 | Women’s 50 Freestyle Heats | Women’s 50 Freestyle Heats | Women’s 50 Freestyle Heats |
| Men’s 50 Backstroke Heats | Men’s 50 Backstroke Heats | Men’s 50 Backstroke Heats | |
| Women’s 50 Breaststroke Heats | Women’s 50 Breaststroke Heats | Women’s 50 Breaststroke Heats | |
| Mixed 4×100 Free Relay Heats | Mixed 4×100 Free Relay Heats | Mixed 4×100 Free Relay Heats | |
| Men’s 1500 Freestyle Heats | Men’s 1500 Freestyle Heats | Men’s 1500 Freestyle Heats | |
| Women’s 50 Butterfly Final | Women’s 50 Butterfly Final | Women’s 50 Butterfly Final | |
| Men’s 50 Freestyle Final | Men’s 50 Freestyle Final | Men’s 50 Freestyle Final | |
| Women’s 200 Backstroke Final | Women’s 200 Backstroke Final | Women’s 50 Freestyle Semifinals | |
| Women’s 50 Breaststroke Semifinals | Women’s 50 Breaststroke Semifinals | Women’s 50 Breaststroke Semifinals | |
| Men’s 100 Butterfly Final | Men’s 100 Butterfly Final | Men’s 100 Butterfly Final | |
| Women’s 50 Freestyle Semifinals | Women’s 50 Freestyle Semifinals | Women’s 200 Backstroke Final | |
| Men’s 50 Backstroke Semifinals | Men’s 50 Backstroke Semifinals | Men’s 50 Backstroke Final | |
| Women’s 800 Freestyle Final | Women’s 800 Freestyle Final | Women’s 800 Freestyle Final | |
| Mixed 4×100 Freestyle Relay | Mixed 4×100 Freestyle Relay | Mixed 4×100 Free Relay Final | |
| Day 8 | Men’s 400 IM Heats | Men’s 400 IM Heats | Women’s 400 IM Heats |
| Women’s 400 IM Heats | Women’s 400 IM Heats | Men’s 4×100 Medley Relay Heats | |
| Men’s 4×100 Medley Relay Heats | Men’s 4×100 Medley Relay Heats | Women’s 4×100 Medley Relay Heats | |
| Women’s 4×100 Medley Relay Heats | Women’s 4×100 Medley Relay Heats | ||
| Men’s 50 Backstroke Final | Men’s 50 Backstroke Final | Men’s 50 Backstroke Final | |
| Women’s 50 Breaststroke Final | Women’s 50 Breaststroke Final | Women’s 50 Breaststroke Final | |
| Women’s 50 Freestyle Final | Men’s 1500 Freestyle Final | Men’s 1500 Freestyle Final | |
| Men’s 1500 Freestyle Final | Women’s 50 Freestyle Final | Women’s 50 Freestyle Final | |
| Men’s 400 IM Final | Men’s 400 IM Final | Women’s 400 IM Final | |
| Women’s 400 IM Final | Women’s 400 IM Final | Men’s 4×100 Medley Relay | |
| Men’s 4×100 Medley Relay | Men’s 4×100 Medley Relay | Women’s 4×100 Medley Relay | |
| Women’s 4×100 Medley Relay | Women’s 4×100 Medley Relay |
GET RID OF 200 SEMIS
Again! Eliminate 200 semis!
Because the 400im is not day one I hope he swims maybe 100br or 400fr
2 back/2 IM scheduling needs to be fixed too
Lochte’s 2 best events😭
i dont mind them shifting the schedules around to resolve high profile event conflicts — the more fast swimming the better. but its sus these shifts seem to have been designed with a singular athlete’s interests in mind. why not also resolve the conflicts for events that summer or kaylee swim?
I honestly have never understood why we need semis in the first place. What was wrong with B-Finals?
At least get rid of the 200 semis.
Makes everything less drawn out.
Nobody’s going to swim B Finals these days.
But I’m good with cutting the 200 semis. 9 day swim meets are too long.
Drop the 400m IM this year Leon and get those 200 WRs! Save your energy and focus on longevity! Do 400 the year after!
Yeah and swim the 100 breast or 400 free
I wonder if we’ll see Summer do the 200 free at worlds? Would be her only event on day 3, but finals of the 2 free are before semi finals of the 2 fly the following night.
if she does her usual 4 i think it will be 4 free, 2 fly, 2 back, and 4 IM,
the only way I see her swimming that is if she does 5 events cause its a better schedule than picking the 2 im or 8 free