Saturday, March 20, 2027 – Sunday, March 21Ashburn, VA
Boxers & Briefs 5k
View on RunSignup ↗Registration opens Jan 13, 2027
1 event
- 5k5KRoadStarts 9:00 AM
Location
Approximate, from the race's ZIP code.
Typical race-day weatherGood weather · 83/100
- High / low
- 55° / 34°F
- 13° / 1°C
- Humidity
- 78%
- Dew point 37°F
- Chance of rain
- 30%
- Wind
- 9 mph
- Average
- Usually cold for a short race: 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
- 10% fasterFinish times are typically 10% faster than at other 5Ks.4 years, 542 finishers; men and women compared separately.
| Year | Event | Finishers | Median | Men | Women |
|---|---|---|---|---|---|
| 2026 | 5k · 5K | 174 | 35:29 | 29:58 | 37:43 |
| 2025 | 5k · 5K | 187 | 31:34 | 27:33 | 32:28 |
| 2024 | 5k · 5K | 105 | 33:24 | 28:57 | 35:48 |
| 2023 | 5k · 5K | 76 | 30:04 | 28:03 | 31:14 |
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.