The Grin & Bear It is Crested Butte’s oldest trail challenge. What began as a sprint to Green Lake and back has evolved into a classic 25K Loop competition, while still offering the traditional 15K race.
Back for 2027: Grin & Bear It BIKE!
The bike route follows the 25K run course, excluding the 0.7-mile out-and-back section to Green Lake. The result is a challenging 14.83-mile ride with just under 4,000 feet of climbing.
For the runners, we’ll have brunch waiting after the race. If you finish after noon, you’ll receive a Mikey’s voucher for a slice of pizza and a drink.
If you’re looking for frills, look somewhere else. If you’re looking for a small, grassroots event with big mountain views and plenty of Type 2 fun, you found it.
Jul 10, 2027
Distance — 25K
Type — Running
08:00
$90.00
Jul 10, 2027
Distance — 15K
Type — Running
09:00
$75.00
Jul 10, 2027
Distance — 23.9K
Type — Running
11:00
$85.00
These values represent the 3-year monthly averages for July in Crested Butte.
Learn more about the host city, Crested Butte.
Crested Butte is a ski resort in the Rocky Mountains region of Southwestern Colorado. Crested Butte is a destination for skiing, mountain biking, and outdoor activities.
Read more launchTours and activities near Crested Butte, powered by Viator.
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location_on Aspen, Colorado, US
calendar_today Oct 10, 2026
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