Saturday, October 31, 2026Boulder, CO
Colleen De Reuck XC Classic
1 event
- 5K XC - Open5KRoadStarts 9:45 AM
Location
Approximate, from the race's ZIP code.
Typical race-day weatherIdeal weather · 90/100
- High / low
- 60° / 33°F
- 15° / 1°C
- Humidity
- 49%
- Dew point 24°F
- Chance of rain
- 19%
- Wind
- 8 mph
- Average
- Usually cold for a short race: about 40°F while racing.
Averages for this area and time of year over the last 20 years, from NASA POWER data. Not a forecast.
Past results
- 34% fasterFinish times are typically 34% faster than at other 5Ks.4 years, 235 finishers; men and women compared separately.
| Year | Event | Finishers | Median | Men | Women |
|---|---|---|---|---|---|
| 2025 | 5K XC - Open · 5K | 58 | 22:52 | 22:39 | 25:28 |
| 2025 | 3K XC - 16 Years & Under · 3K | 49 | 15:18 | 15:08 | 17:09 |
| 2024 | 5K XC - Open · 5K | 34 | 20:11 | — | 20:11 |
| 2024 | USATF Masters Men · 5K | 81 | 21:23 | 21:23 | — |
| 2024 | USATF Masters Women · 5K | 62 | 24:24 | — | 24:24 |
| 2024 | 3K XC - 16 Years & Under · 3K | 67 | 17:07 | 17:02 | 17:36 |
Median finish times from results published on RunSignup. Keyrace keeps only these summaries, never individual results. A fast or slow field affects times as much as the course does.
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