| |
| 600 |
| Pos | Perf | Name | | AG | | Age | DOB | Coach | Club | SB | PB | |
| Q | 1:48.9 | George Butler | PB | U13 | M | 11 | 15.05.97 | | Windsor Slough Eton & Hounslow | 1:48.9 | 1:48.9 |  |
| Q | 1:49.6 | William Brennan | | U13 | M | 11 | 19.05.97 | Alan Hewson | Windsor Slough Eton & Hounslow | 1:43.8 | 1:43.8 | |
| Q | 1:53.6 | Joe Miller | PB | U13 | M | 12 | 08.04.97 | | Reading AC | 1:53.6 | 1:53.6 | |
| Q | 1:57.9 | Harry Wilde | PB | U13 | M | 12 | 10.09.96 | | Bracknell AC | 1:57.9 | 1:57.9 | |
| Q | 2:02.5 | Elliott Harney | PB | U13 | M | 11 | 01.09.97 | | Bracknell AC | 2:02.5 | 2:02.5 | |
| 600 |
| Pos | Perf | Name | | AG | | Age | DOB | Coach | Club | SB | PB | |
| Q | 1:51.5 | Lauren Herrington | PB | U13 | W | 12 | 28.11.96 | | Reading AC | 1:47.0 | 1:47.0 | |
| Q | 1:51.6 | Alice Milsom | | U13 | W | 12 | 10.10.96 | | Reading AC | 1:49.1 | 1:49.1 | |
| Q | 1:56.2 | Abigail Froud | | U13 | W | 12 | 30.09.96 | | Reading AC | 1:49.1 | 1:49.1 | |
| Q | 1:59.5 | Millie Calkin | SB | U13 | W | 11 | 04.11.97 | Averil Hewitt | Team Kennet | 1:59.5 | 1:50.4 | |
| Q | 1:59.5 | Morgan Lake | PB | U13 | W | 11 | 12.05.97 | Eldon Lake | Windsor Slough Eton & Hounslow/Slough Junior | 1:59.5 | 1:59.5 | |
| Q | 2:40.8 | Amy Herrington | SB | U13 | W | 10 | 22.05.98 | George Freeman-Austin | Reading AC | 2:40.8 | 2:05.4 | |