John Burton's efforts:	From	Age	Date	Finish Time
Hardrock 100 2017	California, US	44	Friday, July 14, 2017	31:02:01.00
Hardrock 100 2014	California, US	41	Friday, July 11, 2014	30:03:47.00
The Bear 100 2012	California, US	39	Friday, September 28, 2012	28:42:24.00