| Brian Griffith's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Red Feather Trail Jamboree 2023 50K (50K) | Colorado, US | 50 | Friday, September 22, 2023 | 07:53:08.00 |
| Staunton Rocks! Marathon & Half 2023 (Marathon) | Colorado, US | 50 | Saturday, August 26, 2023 | 06:16:37.00 |
| Staunton Rocks! Marathon & Half 2022 (Marathon) | Colorado, US | 49 | Saturday, August 27, 2022 | 06:34:55.00 |