| Philip Aldwinckle | 3:17.87 | 1999-02-27 | aged 10 | Herts Age Groups 27/2/99 |
| Martin Jones | 2:59.77 | 2000-03-25 | aged 10 | Herts Age Groups sessions 4 & 5 |
| Jake Robinson | 2:58.54 | 2005-01-23 | aged 10 | Biggleswade Open |
| Jake Robinson | 2:53.38 | 2005-03-19 | aged 10 | Age Groups 7 & 8 |