| John Horns's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Hardrock 100 2018 | Minnesota, US | 55 | Friday, July 20, 2018 | 35:21:18.00 |
| The Bear 100 2017 | Minnesota, US | 55 | Friday, September 22, 2017 | 26:59:53.00 |
| Hardrock 100 2016 | Minnesota, US | 53 | Friday, July 15, 2016 | DNF |
| Bighorn 100M 2014 | Minnesota, US | 51 | Friday, June 20, 2014 | Not yet started |