| Personal Details | |
| Name | Callum Merrill |
| Known As | Callum |
| Year of Birth | 2009 |
| Eligibility Category | Open/Male |
| Membership Details | |||
| Member Number | 1433343 | ||
| Member Status | Current | ||
| Ranked Club | Chelmsford City SC | ||
| Country of International Representation | England | ||
| Membership Categories |
| SE Club Compete |
| Clubs & Organisations | |
| Club | Ranked |
| Chelmsford City SC | Yes |
| Click For Personal Best | 2024 Short Course | Short Course PB | 2024 Long Course | Long Course PB |
| 50m Freestyle | . | 28.60 | 28.69 | 28.69 |
| 100m Freestyle | . | 1:01.56 | 1:01.27 | 1:01.27 |
| 200m Freestyle | . | 2:12.78 | 2:13.29 | 2:13.29 |
| 400m Freestyle | . | 4:36.43 | 4:46.20 | 4:46.20 |
| 800m Freestyle | 9:23.64 | 9:23.64 | 9:30.63 | 9:30.63 |
| 1500m Freestyle | 17:47.30 | 17:47.30 | 18:17.48 | 18:17.48 |
| 50m Breaststroke | . | 38.10 | . | 43.04 |
| 100m Breaststroke | . | 1:36.65 | . | . |
| 200m Breaststroke | . | 3:47.83 | . | . |
| 50m Butterfly | . | 31.11 | 30.45 | 30.45 |
| 100m Butterfly | . | 1:11.73 | 1:10.24 | 1:10.24 |
| 200m Butterfly | . | 3:34.68 | . | . |
| 50m Backstroke | . | 35.08 | . | 36.97 |
| 100m Backstroke | . | 1:16.16 | . | . |
| 200m Backstroke | . | 2:43.49 | . | . |
| 200m Individual Medley | . | 2:36.48 | . | . |
| 400m Individual Medley | . | 5:27.43 | . | . |
| 100m Individual Medley | . | 1:12.26 | . | . |
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