| Jeanette Clark | 39.06 | 1996-09-27 | aged 12 | unknown fixture |
| Tina Bingham | 38.83 | 1997-09-28 | aged 14 | unknown fixture |
| Kerry Young | 37.43 | 1999-04-17 | aged 16 | Herts Age Groups 17/4/99 |
| Claire Shannon | 36.88 | 2001-11-25 | aged 15 | Hitchin Open |
| Lucy Crocker | 36.83 | 2010-01-16 | aged 15 | Watford County Qualifier Day 1 |
| Lucy Crocker | 36.55 | 2010-03-28 | aged 15 | Watford Open |
| Lucy Crocker | 36.04 | 2011-01-16 | aged 16 | Watford County Qualifier Day 2 |