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| 300HW (9 May) |
| Pos | Perf | Name | | AG | | Age | DOB | Coach | Club | SB | PB | |
| 1 | 49.80 | Laura Collins | SB | U17 | W | 16 | 04.10.93 | | City of Portsmouth | 49.80 | 49.28 |  |
| 2 | 50.20 | Molly Jehan | PB | U17 | W | 15 | 16.09.94 | Andrew Winnie | Jersey | 50.20 | 50.20 | |
| 3 | 50.37 | Gabriella Oliver | PB | U17 | W | 15 | 26.08.94 | | Winchester | 50.37 | 50.37 | |
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