John Kronenberger's efforts:	From	Age	Date	Finish Time
2020 Running Up For Air Mt. Sentinel (12 Hour)	Montana, US	32	Saturday, February 22, 2020	11:46:39.00
Quad Rock (2018) (Quad Rock 50)	Georgia, US	30	Saturday, May 12, 2018	09:43:04.00
Never Summer 100k 2016	CO	28	Saturday, July 23, 2016	16:29:51.00