Half Marathon
Half marathon athletes will head out of the Colorado Tap House then east on Ralston Creek Trail for a short dogleg and aid station, pass the venue, then head westbound before running the clockwise Blunn Reservoir loop. 10 opportunities to fuel up (+5 toilets).
Surface: 100% concrete/<1% asphalt
Male record: David Forman, 1:27:22 (6:40), 2026 Runapalooza
Female record: Karli Leitz, 1:34:45 (7:14), 2026 Runapalooza
Course average: 2:11:20 (10:02)
Avg. # of athletes: 95
Aid Stations
Aid stations have Eldorado natural spring water, Gatorade (yellow, red, and blue), and Gu gels for all athletes that wish one
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