| Timothy Olson's efforts: | From | Date | Finish Time |
|---|---|---|---|
| 2019 Golden Gate Dirty 30 (50K) | Colorado, US | Saturday, June 1, 2019 | 05:10:41.00 |
| 2018 Golden Gate Dirty 30 (50K) | Saturday, June 2, 2018 | 05:11:31.00 | |
| The Bear 100 2017 | Colorado, US | Friday, September 22, 2017 | 19:38:49.00 |
| 2017 Golden Gate Dirty 30 (50K) | Colorado, US | Saturday, June 3, 2017 | 05:33:52.99 |
| Hardrock 100 2016 | Colorado, US | Friday, July 15, 2016 | 31:53:36.00 |
| 2016 Golden Gate Dirty 30 (50K) | Saturday, June 4, 2016 | 05:26:13.54 | |
| 2015 Golden Gate Dirty 30 (50K) | Saturday, May 30, 2015 | 04:58:39.97 | |
| Hardrock 100 2014 | Oregon, US | Friday, July 11, 2014 | 30:18:43.00 |