Quad Rock 50
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Quad Rock 50 and 25 May 2027
Quad Rock is a trail race event held on the trails west of Fort Collins, Colorado, in Lory State Park and Horsetooth Mountain Park. The course is a loop that includes three major climbs and descents and is marked with pink flagging, directional arrows, and confidence flags on long stretches.
Distances:
- 25 miles : about 5,500 ft vertical gain
- 50 miles : second loop run in reverse, over 11,000 ft vertical gain
Terrain is approximately 85% singletrack and 15% dirt road. Course elevations range from 5,444 ft to 7,087 ft with an average near 6,200 ft. Aid stations are fully staffed at most locations and offer water, sports drink, gels, salty snacks, fruit, sandwiches, hot drinks, and GF or vegan alternatives; two locations include water only or limited aid. Drop bags are allowed at the Horsetooth Trailhead and Soldier Canyon. Toilets are available at main trailheads and additional portable toilets are provided at the start area.
Registration is capped at 450 runners total, split between the two distances, and the event enforces intermediate course cut-offs at specific aid stations. Race rules include staying on the trail, no pacers, crewing only at designated aid stations, and no dogs on course. Wildlife on the route can include Abert squirrels, deer, and black bears. Visit the organization's website for the most recent information.
