| Personal Details | |
| Name | Jessica Williamson |
| Known As | Jessica |
| Eligibility Category | Female |
| Membership Details | |||
| Member Number | 1113994 | ||
| Member Status | Current | ||
| Ranked Club | Wigan SC | ||
| Country of International Representation | England | ||
| Membership Categories |
| SE Club Train |
| Clubs & Organisations | |
| Club | Ranked |
| Wigan SC | Yes |
| Click For Personal Best | 2024 Short Course | Short Course PB | 2024 Long Course | Long Course PB |
| 50m Freestyle | . | 28.64 | . | 28.73 |
| 100m Freestyle | . | 1:02.23 | . | 1:02.49 |
| 200m Freestyle | . | 2:15.75 | . | 2:21.10 |
| 400m Freestyle | . | 4:50.75 | . | 4:53.78 |
| 800m Freestyle | . | 10:47.13 | . | . |
| 1500m Freestyle | . | . | . | . |
| 50m Breaststroke | . | 37.56 | . | 38.34 |
| 100m Breaststroke | . | 1:24.15 | . | 1:25.17 |
| 200m Breaststroke | . | 3:06.87 | . | 3:15.16 |
| 50m Butterfly | . | 31.57 | . | 31.30 |
| 100m Butterfly | . | 1:11.64 | . | 1:09.89 |
| 200m Butterfly | . | 2:59.08 | . | 2:56.95 |
| 50m Backstroke | . | 34.79 | . | 35.86 |
| 100m Backstroke | . | 1:15.52 | . | 1:15.68 |
| 200m Backstroke | . | 2:50.22 | . | 2:46.36 |
| 200m Individual Medley | . | 2:35.19 | . | 2:36.48 |
| 400m Individual Medley | . | 6:03.83 | . | . |
| 100m Individual Medley | . | 1:14.32 | . | . |
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