Doug Seaver's efforts:	From	Age	Date	Finish Time
Hardrock 100 2025	Colorado, US	44	Friday, July 11, 2025	DNF
Hardrock 100 2024	Colorado, US	43	Friday, July 12, 2024	43:57:15.00
Hardrock 100 2018	Missouri, US	37	Friday, July 20, 2018	39:22:22.00
Hardrock 100 2016	Missouri, US	35	Friday, July 15, 2016	42:59:29.00
Hardrock 100 2013	California, US	32	Friday, July 12, 2013	38:04:56.00
Hardrock 100 2012	California, US	32	Friday, July 13, 2012	46:07:00.00
The Bear 100 2011	California, US	30	Friday, September 23, 2011	34:51:19.00