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.
We earn a small commission when you register through this link, at no cost to you. Details
Add to calendar: Apple or Outlook · Google
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 | Other | 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.
How the price compares
At $75, entry is about 121 percent above a typical 15K in Colorado, which costs $34 right now.
Light and altitude
Sunrise on race morning is at about 5:50 AM, and the 25 km Loop starts at 8:00 AM. The start sits about 9,080 feet above sea level, high enough that most runners from lower ground run noticeably slower.
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.
How fast is it?
Slower than most US 15Ks
The fastest quarter of the 2025 15K field finished under 1:43:07, against 1:20:57 in a typical US 15K, so times here run 27 percent slower.
Compares the fastest quarter of each field, so walkers and first-timers do not skew it. It reflects the course and the field together: a flat course, cool weather, or a competitive crowd all make times faster.
Race details
- Where
- 615 2nd Street, Crested Butte, CO 81224Map
- Course
- Road
- Start elevation
- About 9,080 feet
- Included with entry
- T-Shirt
- Donations
- Accepted when you register
- Distances
- 15K, Other
- Editions
- 2027 (Jul 10, 2027), 2026 (Jul 11, 2026), 2025 (Jul 12, 2025)
Organize this race? Add details or a correction
Plan your race
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.
- Is the entry fee high for Colorado?
- At $75, entry is about 121 percent above a typical 15K in Colorado, which costs $34 right now.
- Do runners 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 can I run?
- 15K, Other.
- How big is it, and how fast?
- In 2025, 76 runners finished the 25 km Loop; the median finish was 3:29:52 and the winner ran 2:28:46.
- Does it sell out?
- It can. 67 runners finished the 15K in 2025, close to this year's cap of 74, so register early.
- Is it a fast course?
- The fastest quarter of the 2025 15K field finished under 1:43:07, against 1:20:57 in a typical US 15K, so times here run 27 percent slower.
- 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.