Female - Long Course - 400m Individual Medley - Stockport Metro SC - 11 Years Age Group - At 31st December 2019
| Rank | Name | Ranked Club | YoB | Meet Name | Venue | Level | Date | Time | FINA |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Megan Kenningley | Stockport Mo | 08 | Swansea Aquatic May LC Meet | Swansea | 1 | 06/05/23 | 5:36.30 | 494 |
| 2 | Amelie Coeuille | Marple | 08 | Rotherham Metro Springtime Long Course Meet 2023 | Sheffield | 3 | 14/05/23 | 6:03.49 | 391 |