# Swimming at the 2025 World Aquatics Championships

The swimming events at the 2025 World Aquatics Championships were held from 27 July to 3 August 2025 at the World Aquatics Championships Arena in Singapore.

## Schedule

42 events were held.
| H | Heats | ½ | Semi finals | F | Final |
M = Morning session (starting at 10:00), E = Evening session (starting at 19:00) — All times are local (UTC+8).
Men :
| Date → | Sun 27 | Sun 27 | Mon 28 | Mon 28 | Tue 29 | Tue 29 | Wed 30 | Wed 30 | Thu 31 | Thu 31 | Fri 1 | Fri 1 | Sat 2 | Sat 2 | Sun 3 | Sun 3 |
| Event ↓ | M | E | M | E | M | E | M | E | M | E | M | E | M | E | M | E |
| 50 m freestyle | | | | | | | | | | | H | ½ | | F | | |
| 100 m freestyle | | | | | | | H | ½ | | F | | | | | | |
| 200 m freestyle | | | H | ½ | | F | | | | | | | | | | |
| 400 m freestyle | H | F | | | | | | | | | | | | | | |
| 800 m freestyle | | | | | H | | | F | | | | | | | | |
| 1500 m freestyle | | | | | | | | | | | | | H | | | F |
| 50 m backstroke | | | | | | | | | | | | | H | ½ | | F |
| 100 m backstroke | | | H | ½ | | F | | | | | | | | | | |
| 200 m backstroke | | | | | | | | | H | ½ | | F | | | | |
| 50 m breaststroke | | | | | H | ½ | | F | | | | | | | | |
| 100 m breaststroke | H | ½ | | F | | | | | | | | | | | | |
| 200 m breaststroke | | | | | | | | | H | ½ | | F | | | | |
| 50 m butterfly | H | ½ | | F | | | | | | | | | | | | |
| 100 m butterfly | | | | | | | | | | | H | ½ | | F | | |
| 200 m butterfly | | | | | H | ½ | | F | | | | | | | | |
| 200 m individual medley | | | | | | | H | ½ | | F | | | | | | |
| 400 m individual medley | | | | | | | | | | | | | | | H | F |
| 4 × 100 metre freestyle relay | H | F | | | | | | | | | | | | | | |
| 4 × 200 metre freestyle relay | | | | | | | | | | | H | F | | | | |
| 4 × 100 metre medley relay | | | | | | | | | | | | | | | H | F |
Women :
| Date → | Sun 27 | Sun 27 | Mon 28 | Mon 28 | Tue 29 | Tue 29 | Wed 30 | Wed 30 | Thu 31 | Thu 31 | Fri 1 | Fri 1 | Sat 2 | Sat 2 | Sun 3 | Sun 3 |
| Event ↓ | M | E | M | E | M | E | M | E | M | E | M | E | M | E | M | E |
| 50 m freestyle | | | | | | | | | | | | | H | ½ | | F |
| 100 m freestyle | | | | | | | | | H | ½ | | F | | | | |
| 200 m freestyle | | | | | H | ½ | | F | | | | | | | | |
| 400 m freestyle | H | F | | | | | | | | | | | | |
| 800 m freestyle | | | | | | | | | | | H | | | F | | |
| 1500 m freestyle | | | H | | | F | | | | | | | | | | |
| 50 m backstroke | | | | | | | H | ½ | | F | | | | | | |
| 100 m backstroke | | | H | ½ | | F | | | | | | | | | | |
| 200 m backstroke | | | | | | | | | | | H | ½ | | F | | |
| 50 m breaststroke | | | | | | | | | | | | | H | ½ | | F |
| 100 m breaststroke | | | H | ½ | | F | | | | | | | | | | |
| 200 m breaststroke | | | | | | | | | H | ½ | | F | | | | |
| 50 m butterfly | | | | | | | | | | | H | ½ | | F | | |
| 100 m butterfly | H | ½ | | F | | | | | | | | | | | | |
| 200 m butterfly | | | | | | | H | ½ | | F | | | | | | |
| 200 m individual medley | H | ½ | | F | | | | | | | | | | | | |
| 400 m individual medley | | | | | | | | | | | | | | | H | F |
| 4 × 100 metre freestyle relay | H | F | | | | | | | | | | | | | | |
| 4 × 200 metre freestyle relay | | | | | | | | | H | F | | | | | | |
| 4 × 100 metre medley relay | | | | | | | | | | | | | | | H | F |
Mixed :
| Date → | Sun 27 | Sun 27 | Mon 28 | Mon 28 | Tue 29 | Tue 29 | Wed 30 | Wed 30 | Thu 31 | Thu 31 | Fri 1 | Fri 1 | Sat 2 | Sat 2 | Sun 3 | Sun 3 |
| Event ↓ | M | E | M | E | M | E | M | E | M | E | M | E | M | E | M | E |
| 4 × 100 m freestyle relay | | | | | | | | | | | | | H | F | | |
| 4 × 100 m medley relay | | | | | | | H | F | | | | | | | | |