| John Langford's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| The Bear 100 2025 | Utah, US | 72 | Friday, September 26, 2025 | DNF |
| The Bear 100 2023 | Utah, US | 70 | Friday, September 29, 2023 | 34:57:03.00 |
| 2022 Running Up For Air (SLC) (24H) | Utah, US | 68 | Saturday, February 5, 2022 | 19:19:15.00 |
| 2020 Running Up For Air (SLC) (24H) | Utah, US | 66 | Saturday, February 22, 2020 | 17:10:27.00 |
| 2019 Running Up For Air (SLC) (24H) | Utah, US | 65 | Saturday, February 9, 2019 | 12:00:59.00 |
| 2018 Running Up For Air (24H) | Utah, US | 64 | Saturday, February 10, 2018 | 12:18:13.00 |