| Personal Details | |
| Name | William Leese |
| Known As | William |
| Year of Birth | 2008 |
| Eligibility Category | Open/Male |
| Membership Details | |||
| Member Number | 1399311 | ||
| Member Status | Current | ||
| Ranked Club | City of Cambridge SC | ||
| Country of International Representation | England | ||
| Membership Categories |
| SE Club Compete |
| Clubs & Organisations | |
| Club | Ranked |
| City of Cambridge SC | Yes |
| Click For Personal Best | 2024 Short Course | Short Course PB | 2024 Long Course | Long Course PB |
| 50m Freestyle | 27.65 | 27.65 | 28.19 | 28.19 |
| 100m Freestyle | . | 1:01.44 | . | . |
| 200m Freestyle | . | 2:13.52 | . | . |
| 400m Freestyle | . | 4:49.90 | . | . |
| 800m Freestyle | . | 10:57.47 | . | . |
| 1500m Freestyle | . | . | . | . |
| 50m Breaststroke | . | 37.31 | . | 49.40 |
| 100m Breaststroke | . | 1:19.98 | . | . |
| 200m Breaststroke | 2:48.34 | 2:48.34 | . | . |
| 50m Butterfly | 30.02 | 30.02 | 30.46 | 30.46 |
| 100m Butterfly | . | 1:07.98 | . | . |
| 200m Butterfly | . | 2:38.20 | . | . |
| 50m Backstroke | 30.36 | 30.36 | 30.35 | 30.35 |
| 100m Backstroke | 1:03.99 | 1:03.99 | 1:05.40 | 1:05.40 |
| 200m Backstroke | 2:17.34 | 2:17.34 | 2:21.12 | 2:21.12 |
| 200m Individual Medley | 2:23.30 | 2:23.30 | 2:31.44 | 2:31.44 |
| 400m Individual Medley | 5:05.76 | 5:05.76 | . | 5:26.48 |
| 100m Individual Medley | 1:06.89 | 1:06.89 | . | . |
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