| Edale Fell Race | Sun 14th Jun 2026 | 30/508 | 00:33:06 | See all Isla Jebb at Edale Fell Race |
| Shutlingsloe Juniors | Sun 19th May 2024 | 7/400 | 00:19:44 | See all Isla Jebb at Shutlingsloe Juniors |
| Duddon Juniors | Sun 21st Apr 2024 | 3/162 | 00:28:16 | See all Isla Jebb at Duddon Juniors |
| West Nab Juniors | Sat 29th May 2021 | 1/ | 00:11:52 | See all Isla Jebb at West Nab Juniors |