| Mark Simmons's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| 2017 High Lonesome 100 | Friday, July 28, 2017 | 29:25:15.00 | ||
| Never Summer 100k 2016 | CO | 30 | Saturday, July 23, 2016 | 15:41:32.00 |
| Mark Simmons's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| 2017 High Lonesome 100 | Friday, July 28, 2017 | 29:25:15.00 | ||
| Never Summer 100k 2016 | CO | 30 | Saturday, July 23, 2016 | 15:41:32.00 |