Saturday, May 1, 2027Ballwin, MO
The SPRING SPRUNG 5k-10k 10K Ruck and Half Marathon
3 events
- 5k5KRoadStarts 8:00 AM
- 10k10KRoadStarts 8:00 AM
- Half MarathonHalfRoadStarts 8:00 AM
Location
Approximate, from the race's ZIP code.
Typical race-day weatherGood weather · 82/100
- High / low
- 71° / 50°F
- 22° / 10°C
- Humidity
- 78%
- Dew point 53°F
- Chance of rain
- 50%
- Wind
- 7 mph
- Average
- Rain on about 50% of days around this date.
Averages for this area and time of year over the last 20 years, from NASA POWER data. Not a forecast.
Past results
- Typical timesFinish times are typical for 5Ks.2 years, 88 finishers; men and women compared separately.
- 6% slowerFinish times are typically 6% slower than at other 10Ks.2 years, 47 finishers; men and women compared separately.
- Typical timesFinish times are typical for half marathons.2 years, 44 finishers; men and women compared separately.
| Year | Event | Finishers | Median | Men | Women |
|---|---|---|---|---|---|
| 2026 | Half Marathon · Half | 23 | 2:24:27 | 2:09:46 | 2:28:08 |
| 2026 | 10k · 10K | 25 | 1:04:04 | 59:22 | 1:08:28 |
| 2026 | 5k · 5K | 62 | 41:03 | 35:18 | 41:28 |
| 2025 | Half Marathon · Half | 21 | 2:09:52 | 2:09:52 | 2:09:38 |
| 2025 | 10k · 10K | 22 | 1:07:39 | 1:02:20 | 1:15:25 |
| 2025 | 5k · 5K | 26 | 34:17 | 28:09 | 34:48 |
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.