Mark McDermott's efforts:	From	Age	Date	Finish Time
Hardrock 100 2015	Oregon, US	53	Friday, July 10, 2015	36:21:52.00
Hardrock 100 1996	Colorado, US	34	Friday, July 12, 1996	DNF
Hardrock 100 1994	Colorado, US	32	Friday, July 8, 1994	DNF
Hardrock 100 1993	Colorado, US	31	Friday, July 9, 1993	41:04:00.00