Mark Marzen's efforts:	From	Age	Date	Finish Time
The Bear 100 2024	Colorado, US	38	Friday, September 27, 2024	DNF
Never Summer 100k (2018)	Colorado, US	31	Saturday, July 28, 2018	11:47:46.00
Blue Sky Trail Marathon (2017)	CO	31	Saturday, October 21, 2017	03:37:42.00