Michael Cross's efforts:	From	Age	Date	Finish Time
2021 Silverton Ultra Dirty (100K)	Colorado, US	63	Saturday, August 7, 2021	DNF
2017 Silverton Double Dirty 30 (55K)	Colorado, US	60	Saturday, September 23, 2017	08:47:42.00
Bighorn 100M 2014	Colorado, US	57	Friday, June 20, 2014	DNF
2014 Golden Gate Dirty 30 (50K)		56	Saturday, May 31, 2014	08:02:25.56