| Joseph Mileusnic | 7:00.78 | 2007-05-20 | aged 10 | Kate Lack Gala |
| Jack Jarrett | 6:32.05 | 2008-01-26 | aged 12 | Biggleswade Open |
| Joseph Mileusnic | 6:18.13 | 2009-01-18 | aged 12 | Barnet Middle Distance Meet |
| Kieran Watkins | 6:04.45 | 2011-03-05 | aged 11 | Herts County Champs Day 2 |
| Kieran Watkins | 6:01.57 | 2011-10-16 | aged 11 | Romford Short Course Open |
| Kieran Watkins | 5:50.62 | 2012-01-21 | aged 12 | Biggleswade Open Day 1 |