| Rank | Name | Time | Position in race | Event |
|---|---|---|---|---|
| 1 | Joe Walton | 15:28 | 29 | Barrowford - Nov. 18, 2017 |
| 2 | Elle Twentyman | 15:46 | 33 | Leicester - July 2, 2022 |
| 3 | Elle Twentyman | 16:29 | 3 | Barrowford - Aug. 21, 2021 |
| 4 | Oscar Lee | 16:51 | 471 | Podium Festival - March 16, 2024 |
| 5 | Kate Drew | 17:04 | 8 | Barrowford - Aug. 21, 2021 |