Saturday, September 4, 2027St Louis, MO
The Labor Day Slay 5K-10K-10K-RUCK & Half Marathon
3 events
- Half MarathonHalfRoadStarts 7:30 AM
- 5k5KRoadStarts 7:30 AM
- 10k10KRoadStarts 7:30 AM
Location
Approximate, from the race's ZIP code.
Typical race-day weatherTough weather · 53/100
- High / low
- 86° / 63°F
- 30° / 17°C
- Humidity
- 69%
- Dew point 61°F
- Chance of rain
- 34%
- Wind
- 5 mph
- Average
- Usually warm for a half marathon: about 71°F while racing.
- Humid: dew point around 61°F.
Averages for this area and time of year over the last 20 years, from NASA POWER data. Not a forecast.
Past results
- 10% slowerFinish times are typically 10% slower than at other 5Ks.2 years, 147 finishers; men and women compared separately.
- 6% slowerFinish times are typically 6% slower than at other half marathons.2 years, 80 finishers; men and women compared separately.
- 5% slowerFinish times are typically 5% slower than at other 10Ks.2 years, 54 finishers; men and women compared separately.
| Year | Event | Finishers | Median | Men | Women |
|---|---|---|---|---|---|
| 2026 | Half Marathon · Half | 46 | 2:20:24 | 2:17:30 | 2:27:22 |
| 2026 | 10k · 10K | 24 | 1:09:22 | 1:04:11 | 1:13:03 |
| 2026 | 5k · 5K | 78 | 41:29 | 37:44 | 44:08 |
| 2025 | Half Marathon · Half | 34 | 2:10:45 | 2:06:12 | 2:30:33 |
| 2025 | 10k · 10K | 30 | 1:05:28 | 56:25 | 1:08:37 |
| 2025 | 5k · 5K | 69 | 35:40 | 31:39 | 40:31 |
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.