| Jonathon Cox's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Quad Rock 2024 (Quad Rock 50) | Colorado, US | 30 | Saturday, May 11, 2024 | 13:41:15.00 |
| Staunton Rocks! Marathon & Half 2023 (Marathon) | Colorado, US | 30 | Saturday, August 26, 2023 | 05:31:03.00 |
| Jonathon Cox's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Quad Rock 2024 (Quad Rock 50) | Colorado, US | 30 | Saturday, May 11, 2024 | 13:41:15.00 |
| Staunton Rocks! Marathon & Half 2023 (Marathon) | Colorado, US | 30 | Saturday, August 26, 2023 | 05:31:03.00 |