Female - Long Course - 400m Individual Medley - Stockport Metro SC - 12 Years Age Group - At 31st December 2019
| Rank | Name | Ranked Club | YoB | Meet Name | Venue | Level | Date | Time | FINA |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Sophie Traill | Stockport Mo | 07 | Speedo Aquatics GB Swimming Championships 2024 | London | 1 | 04/04/24 | 5:06.30 | 653 |