Male:
| Age: | Time: | Date: | Who: |
| 9 | |||
| 10 | 11:59.88 – SC | 12 / 12 / 2010 | Ben Flanagan |
| 11 | 9:37.89 – SC | 05 / 05 / 2011 | William Gayne |
| 12 | 9:25.90 – SC | 01 / 06 / 2009 | James Bull |
| 13 | 9:09.68 – SC | 06 / 03 / 2010 | Elliot Woodward |
| 14 | 8:59.36 – SC | 05 / 03 / 2011 | Elliot Woodward |
| 15 | 10:15.88 – SC | 15 / 12 / 2024 | James Hickman |
| 16 | 10:27.86 – SC | 01 / 06 / 1998 | Andrew Creasey |
| 17+ | 10:41.72 – SC | 01 / 06 / 1989 | Dale Powis |
Female:
| Age: | Time: | Date: | Who: |
| 9 | |||
| 10 | |||
| 11 | 10:55.18 – SC | 01 / 06 / 2018 | Abigail Gilding |
| 12 | 9:39.70 – SC | 01 / 06 / 2011 | Eden Michell |
| 13 | 9:57.95 – SC 9:54.82 – LC | 23 / 10 / 2021 05 / 02 / 2022 | Pippa Hickman Pippa Hickman |
| 14 | 10:07.85 – SC 9:54.70 – LC | 01 / 06 / 1988 16 / 04 / 2022 | Emma Brown Pippa Hickman |
| 15 | 9:36.39 – LC | 03 / 02 / 2024 | Pippa Hickman |
| 16 | 9:56.46 – SC 9:40.38 – LC | 01 / 06 / 1988 01 / 02 / 2025 | Kirstie Donaldson Pippa Hickman |
| 17+ | 9:43.34 – SC | 01 / 06 / 1990 | Ali Mackintosh |