Grab that friend who’s been there through thick and thin and start running. Side-by-side you’ll climb ropes, scale walls, navigate mazes, and of course trudge through 50 feet of mud on your bellies before reaching the finish line. Not challenging enough for you two? Try the bike and run race where partners switch off every mile. Young ones can also compete at the mini obstacle course. Sun 7:45 a.m.

 

Date: Aug 12, 2012 7:45 am
Cost: Registration fees start at $20.
Venue: Boulder Reservoir