| Steffen Buttner's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Hardrock 100 1999 | US | 38 | Friday, July 9, 1999 | 35:52:50.00 |
| Hardrock 100 1998 | US | 37 | Friday, July 10, 1998 | DNF |
| Steffen Buttner's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Hardrock 100 1999 | US | 38 | Friday, July 9, 1999 | 35:52:50.00 |
| Hardrock 100 1998 | US | 37 | Friday, July 10, 1998 | DNF |