Robert Marks's efforts:	From	Age	Date	Finish Time
2024 High Lonesome 100	Colorado, US	31	Friday, July 19, 2024	36:13:42.00
2022 Sawatch Ascent 50k	Colorado, US	29	Sunday, September 25, 2022	08:08:02.00
2019 Silverton Ultra Marathon (55K)	Colorado, US	26	Saturday, August 3, 2019	10:47:01.00