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Events for May 31, 2026

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Weld Your Mettle

Woodland Home Marketplace 11586 CR 80, Eaton

Join us for three days of running excitement! Whether you're tackling the events individually or teaming up for relays: 14 mile, full marathon, 50k, 5 miles 100k,100 miles, or taking […]

Harvest Moon Triathlon

Boulder Reservoir 5565 N 51st St, Boulder

Est. in 2000 this Colorado classic provides the veterans to beginners a challenging, affordable, and competitive race with a local flavor. Whether this is your first event of the season, […]

Reuter-Hess Trail Run

Reuter Hess Incline 11865 Heirloom Pkwy, Parker

10k, with 600′ of elevation gain, on the trails at the Reuter-Hess Incline and Reservoir, in Parker. After 1/3mi, you climb an incline/challenge hill. The rest of the course is […]

$35

Fish Hatchery 5K

Leadville National Fish Hatchery 2846 Hwy 300, Leadville

Located at the historic Leadville National Fish Hatchery, the Fish Hatchery 5K features a scenic cross country style course that winds through subalpine forest near and around the Evergreen Lakes […]

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