Michael Sprengel's efforts:	From	Age	Date	Finish Time
Quad Rock 2023 (Quad Rock 50)	Colorado, US	35	Saturday, May 6, 2023	DNF
Never Summer (2022) (100k)	Colorado, US	35	Saturday, July 30, 2022	19:46:47.00
Quad Rock 2020 (Quad Rock 50)	Colorado, US	33	Saturday, August 15, 2020	DNF