BestRaces| Distances | 5K, Kids 800M |
| Surface | road |
| Field size | 1,415 runners |
| USATF certified | No |
| Boston qualifier | No |
From the race's RunSignup listing, with field size from its posted results, last updated September 4, 2026.
Running Alpine Bank Boulder Thanksgiving Day 5K for a cause? Set up a free team page — rally your people, point donations straight to your charity.
Race-day weather
What the weather did on November 26 in each of the last 5 years, measured at Boulder, 3.6 miles from Boulder.
| Year | High | Low | Rain |
|---|---|---|---|
| 2025 | 40°F | 19°F | none |
| 2024 | 53°F | 28°F | none |
| 2023 | 38°F | 12°F | none |
| 2022 | 59°F | 30°F | none |
| 2021 | 72°F | 34°F | none |
Daily highs and lows, not start-line temperatures: most races start in the cool of the morning, closer to the low. Source: NOAA National Centers for Environmental Information, GHCN-Daily.
Stay near Boulder
Hotels and rentals in and around Boulder, CO.
Preset to race weekend, Nov 25 – 27.
Bookings made through this map may earn BestRaces a commission. It has no effect on rankings (how ranking works).
Race Pace Analyzer beta
Build your Alpine Bank Boulder Thanksgiving Day 5K splits
This one already knows the course. Give it your goal time and it gives you every split to the finish, adjusted for this race's terrain and its usual race-morning temperature, plus a fueling plan and a check on whether the goal fits your fitness. It's free, and there's nothing to sign up for.
- Already loaded
- 5K
- ≈30°F on November race mornings
| Mile | Split | Elapsed |
|---|
Training paces for this goal
The everyday paces that build the fitness behind your goal, worked out from your target with the Daniels VDOT model. Save these for your next training block.
Treat these as a guide. Run easy days by feel, and adjust for heat, hills and how your legs feel that day.
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Beta. The splits are exact math on your goal time. The terrain and weather notes are estimates from this race's listing, not a forecast.
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