Saturday, July 31, 2027San Antonio, TX
Heatwave Half Marathon/5K/10K - San Antonio
4 events
- 1 Mile1 miRoadStarts 7:00 AM
- 5K5KRoadStarts 7:00 AM
- 10K10KRoadStarts 7:00 AM
- Half-MarathonHalfRoadStarts 7:00 AM
Location
Approximate, from the race's ZIP code.
Typical race-day weatherHarsh weather · 19/100
- High / low
- 98° / 75°F
- 37° / 24°C
- Humidity
- 59%
- Dew point 67°F
- Chance of rain
- 20%
- Wind
- 9 mph
- Average
- Usually hot for a half marathon: about 83°F while racing.
- Muggy: dew point around 67°F.
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.1 year, 105 finishers; men and women compared separately.
- 9% slowerFinish times are typically 9% slower than at other 10Ks.1 year, 49 finishers; men and women compared separately.
| Year | Event | Finishers | Median | Men | Women |
|---|---|---|---|---|---|
| 2026 | Half-Marathon · Half | 19 | 2:27:08 | 2:26:38 | 2:27:59 |
| 2026 | 10K · 10K | 49 | 1:10:04 | 1:04:14 | 1:11:56 |
| 2026 | 5K · 5K | 105 | 34:52 | 32:24 | 35:32 |
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.