| Hannah Jones | 1:35.05 | 1998-07-05 | aged 10 | Club championships |
| Charlotte Purcell | 1:30.16 | 1998-11-22 | aged 10 | Luton Open |
| Laura Fitzharris | 1:25.93 | 1999-04-17 | aged 10 | Herts Age Groups 17/4/99 |
| Charlotte Purcell | 1:20.47 | 1999-04-17 | aged 10 | Herts Age Groups 17/4/99 |
| Laura Baker | 1:19.67 | 2000-05-14 | aged 10 | Club Championships 2 |
| Christie Bays | 1:14.32 | 2006-11-12 | aged 10 | Club Championships 2 |
| Christie Bays | 1:12.79 | 2007-05-26 | aged 10 | Stevenage Open |
| Christie Bays | 1:11.89 | 2007-06-10 | aged 10 | ASA East Junior Championships |
| Jessica Jackson | 1:11.32 | 2008-04-13 | aged 10 | Luton Open Day 2 |
| Jessica Jackson | 1:09.41 | 2008-06-15 | aged 10 | ASA East Junior Championships Day 4 |