| Christopher Geiger's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| 2021 Silverton Ultra Dirty (60K) | Colorado, US | 33 | Saturday, August 7, 2021 | 09:19:29.00 |
| 2019 Golden Gate Dirty 30 (50K) | Colorado, US | 30 | Saturday, June 1, 2019 | 07:08:12.00 |
| Christopher Geiger's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| 2021 Silverton Ultra Dirty (60K) | Colorado, US | 33 | Saturday, August 7, 2021 | 09:19:29.00 |
| 2019 Golden Gate Dirty 30 (50K) | Colorado, US | 30 | Saturday, June 1, 2019 | 07:08:12.00 |