| Jeanette Clark | 1:16.11 | 1996-03-03 | aged 12 | Age Groups |
| Claire Taylor | 1:09.30 | 1998-05-30 | aged 11 | Tumbridge Wells |
| Claire Taylor | 1:09.00 | 1998-07-05 | aged 12 | Club championships |
| Claire Taylor | 1:08.58 | 1998-11-07 | aged 12 | Speedo League (Dagenham) |
| Claire Taylor | 1:07.54 | 1998-11-29 | aged 12 | Hitchin Open |
| Claire Taylor | 1:06.90 | 1999-02-13 | aged 12 | Herts Major League 13/2/99 |
| Claire Taylor | 1:06.46 | 1999-03-06 | aged 12 | Herts Major League 6/3/99 |