Sunday, January 3, 2027Las Vegas, NV
Chilly Willy 5K/10K/Half Marathon - Las Vegas
3 events
- 10K10KRoadStarts 9:00 AM
- Half MarathonHalfRoadStarts 9:00 AM
- 5K5KRoadStarts 9:00 AM
Location
Approximate, from the race's ZIP code.
Typical race-day weatherIdeal weather · 94/100
- High / low
- 52° / 32°F
- 11° / 0°C
- Humidity
- 49%
- Dew point 20°F
- Chance of rain
- 8%
- Wind
- 8 mph
- Average
- Usually cold for a half marathon: about 39°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
- 8% slowerFinish times are typically 8% slower than at other 5Ks.3 years, 220 finishers; men and women compared separately.
- 7% slowerFinish times are typically 7% slower than at other 10Ks.2 years, 109 finishers; men and women compared separately.
| Year | Event | Finishers | Median | Men | Women |
|---|---|---|---|---|---|
| 2026 | Half Marathon · Half | 19 | 2:11:43 | 2:01:13 | 3:04:01 |
| 2026 | 10K · 10K | 72 | 1:09:34 | 1:04:55 | 1:10:04 |
| 2026 | 5K · 5K | 73 | 37:33 | 33:13 | 39:30 |
| 2025 | Half Marathon · Half | 14 | 2:02:50 | 1:52:02 | 2:18:28 |
| 2025 | 10K · 10K | 37 | 1:07:31 | 58:32 | 1:15:06 |
| 2025 | 5K · 5K | 91 | 43:58 | 40:16 | 44:28 |
| 2024 | Half Marathon · Half | 15 | 2:10:59 | 1:59:25 | 2:17:20 |
| 2024 | 10K · 10K | 14 | 58:08 | 56:36 | 1:07:01 |
| 2024 | 5K · 5K | 56 | 37:47 | 38:14 | 37:47 |
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.