Grin & Bear It 2027
- Date
- Saturday, July 10, 2027
- Start time
- 8:00 AM start (Denver)
- Location
- Crested Butte, Colorado
- Entry fee
- From $75 · goes up to $93 on Jan 1, 2027
- Included with entry
- Includes a shirt
- Fundraising
- Takes optional donations when you register
Check registration status on RunSignup.
Likely to sell out. 67 finished the 15K in 2025, and this year's cap is 74.
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Events and entry fees
| Event | Distance | When | Entry fee | Cap |
|---|---|---|---|---|
| 25 km Loop | Other | Jul 10, 20278:00 AM | $90$93 after Jan 1, 2027 | 95 |
| 15 km Out and Back | 15K | Jul 10, 20279:00 AM | $75$77 after Jan 1, 2027 | 74 |
| Mountain Bike | Mountain Bike | Jul 10, 202711:00 AM | $85$88 after Jan 1, 2027 | 85 |
Entry fees exclude processing fees. Prices and dates come from the race's registration page and refresh nightly.
Race day planning
Entry fee schedule
- 25 km Loop: $90 until Jan 1, then $93 until Feb 1, then $95 until Mar 1, then $100 until Apr 1, then $105 until May 1, then $110 until Jul 10.
- 15 km Out and Back: $75 until Jan 1, then $77 until Mar 1, then $80 until Apr 1, then $85 until May 1, then $90 until Jun 1, then $95 until Jul 9.
- Mountain Bike: $85 until Jan 1, then $88 until Feb 1, then $90 until Jul 10.
Online registration closes Jul 10, 2027, unless the race fills first.
Light and altitude
Sunrise on race morning is at about 5:50 AM, and the 25 km Loop starts at 8:00 AM.
Fees exclude processing fees. Comparisons use current entry fees and published results from races nearby.
Start location and course
615 2nd Street, Crested Butte, CO 81224
The pin marks the address the race lists, which is usually the start. The organizers have not shared a course map with us yet.
2025 results
All results25 km Loop
15 km Out and Back
Mountain Bike
Aggregated from official results for Grin & Bear It. Individual finisher names are not stored here.
How fast do you need to be at Grin & Bear It?
At the 2025 25 km Loop, the fastest tenth finished in 2:46:44 or better, the top quarter in 3:06:49, and half the field in 3:29:52; the last tenth came in after 4:29:10.
At the 2025 15 km Out and Back, the fastest tenth finished in 1:31:00 or better, the top quarter in 1:43:07, and half the field in 2:08:20; the last tenth came in after 2:35:50.
At the 2025 Mountain Bike, the fastest tenth finished in 1:34:28 or better, the top quarter in 1:39:47, and half the field in 1:58:55; the last tenth came in after 2:40:16.
| Age | Women | Men |
|---|---|---|
| 20-29 | 2:56:59 | n/a |
| 30-39 | 2:59:13 | 2:43:19 |
| 40-49 | n/a | 3:48:29 |
| 50-59 | 3:41:52 | 2:58:48 |
Groups with fewer than five finishers are left out. Awards vary by race; check the race's rules.
What would my time get me?
Where a finish time would have placed in 2025.
Typical race-day weather
Around July 10 the day usually runs from 41°F at dawn to 69°F in the afternoon, with measurable rain on about 9% of days. Cold snaps dip to 35°F and hot years reach 73°F.
Based on 75 days within a week of the date over the last 5 years, from historical weather for the start area. Not a forecast.
Race details
- Where
- 615 2nd Street, Crested Butte, CO 81224Map
- Course
- Road
- Included with entry
- T-Shirt
- Donations
- Accepted when you register
- Distances
- Mountain Bike, 15K, Other
- Editions
- 2027 (Jul 10, 2027), 2026 (Jul 11, 2026), 2025 (Jul 12, 2025)
Organize this race? Add details or a correction
Quick answers
- When is Grin & Bear It?
- Saturday, July 10, 2027, starting at 8:00 AM.
- How much does it cost?
- Entry starts at $75 before processing fees, and rises to $93 on Jan 1, 2027.
- When does registration close?
- Online registration closes Jul 10, 2027, unless the race fills first.
- Do athletes get a shirt or medal?
- Entry includes a shirt, according to the race's registration page. Check it for sizes and whether kids' races get the same.
- Can I donate to a cause when I register?
- Yes. The registration form offers an optional donation, usually for the charity or nonprofit the race supports. The race's own page names the cause.
- What distances are offered?
- Mountain Bike, 15K, Other.
- How big is it, and how fast?
- In 2025, 76 athletes finished the 25 km Loop; the median finish was 3:29:52 and the winner finished in 2:28:46.
- Does it sell out?
- It can. 67 athletes finished the 15K in 2025, close to this year's cap of 74, so register early.
- Where does it start?
- 615 2nd Street, Crested Butte, CO 81224.
From the organizers
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.