| John D Williams's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Quad Rock 2023 (Quad Rock 25) | Colorado, US | 59 | Saturday, May 6, 2023 | 06:57:53.00 |
| Quad Rock 2022 (Quad Rock 25) | Colorado, US | 58 | Saturday, May 7, 2022 | 07:14:42.00 |
| John D Williams's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Quad Rock 2023 (Quad Rock 25) | Colorado, US | 59 | Saturday, May 6, 2023 | 06:57:53.00 |
| Quad Rock 2022 (Quad Rock 25) | Colorado, US | 58 | Saturday, May 7, 2022 | 07:14:42.00 |