RunRace USA › Colorado › Westminster › All-Out Fall Fest
All-Out Fall Fest
Saturday, September 18, 2027 · Westminster, CO
The race in 60 seconds
It is one of 16 races on the Colorado calendar that September.
What race day usually feels like
Based on the last three years, race week in September typically sees lows near 50°F and highs around 78°F: mild at the start, warm by the finish. Weather normals computed from Westminster-area conditions for race week, not the nearest big city.
How the field ran it in 2025
Real chip times from the 2025 official results, not estimates. Use the median as your reality check: half the field finished slower than it.
| 2025 Half Marathon · 95 finishers | Time | Pace |
|---|---|---|
| Winner | 1:21:49 | 6:15 /mi |
| Top 25% | 1:59:49 | 9:09 /mi |
| Median finisher | 2:13:02 | 10:09 /mi |
| 75th percentile | 2:39:00 | 12:08 /mi |
| Final finisher | 3:36:34 | 16:32 /mi |
| 2025 10K · 91 finishers | Time | Pace |
|---|---|---|
| Winner | 35:50 | 5:47 /mi |
| Top 25% | 54:25 | 8:47 /mi |
| Median finisher | 1:02:41 | 10:07 /mi |
| 75th percentile | 1:12:08 | 11:38 /mi |
| Final finisher | 1:39:32 | 16:03 /mi |
| 2025 5K · 137 finishers | Time | Pace |
|---|---|---|
| Winner | 20:51 | 6:44 /mi |
| Top 25% | 27:46 | 8:57 /mi |
| Median finisher | 35:43 | 11:31 /mi |
| 75th percentile | 41:09 | 13:16 /mi |
| Final finisher | 1:05:23 | 21:05 /mi |
Official 2025 results via RunSignUp, 323 finishers across 3 events.
Common questions
When is All-Out Fall Fest?
All-Out Fall Fest is scheduled for Saturday, September 18, 2027.
Where is All-Out Fall Fest held?
All-Out Fall Fest is held in Westminster, Colorado. It is about 12 miles from Denver.
What distances does All-Out Fall Fest offer?
The listed distances are Half Marathon, 10K, 5K.
How much does All-Out Fall Fest cost?
Listed event options start from $20. This minimum may be for a kids or shorter event. Check the official race page for your distance's current price and any additional fees.
How do I register for All-Out Fall Fest?
Registration is handled on the official race page, linked at the top of this listing. Entry can close early if the race sells out.
More races nearby
Within about 60 miles, ordered by approximate straight-line distance between listed locations.
- Oct 2, 2027Not So Flatt Breast Cancer Awareness Run/Walk – 5K & 10K in Denver, COWestminster, CO · 5K, 10K
- Oct 10, 2027Westy Half & 5kWestminster, CO · Half Marathon, 5K
- Aug 22, 2027Pioneer Prairie Dog Half, 10k & 5kWestminster, CO · Half Marathon, 10K, 5K
- Jul 10, 2027All-Out Dog DaysWestminster, CO · Half Marathon, 10K, 5K
See every race on the Colorado calendar, all Westminster races, Colorado Half Marathons, Colorado 5Ks, or use the Race Finder for maps and filters.
Register for All-Out Fall Fest →on RunSignUp · listed event options from $20
Listing data refreshed nightly from the registration platform. Photos via Wikimedia Commons (CC BY 3.0). Last template review July 2026. Spot an error? Tell us and we'll fix it fast.