Sunday, April 11, 2027Durham, NC
Mountains-to-Sea Trail 13M & 50K Challenge
View on RunSignup ↗Registration opens Dec 1, 2026
2 events
- 50+ KM50KUltraStarts 7:00 AM
- 13-MileHalfTrailStarts 8:30 AM
Location
Approximate, from the race's ZIP code.
Typical race-day weatherIdeal weather · 89/100
- High / low
- 71° / 47°F
- 21° / 8°C
- Humidity
- 75%
- Dew point 49°F
- Chance of rain
- 30%
- Wind
- 6 mph
- Average
- Usually ideal weather for an ultra.
Averages for this area and time of year over the last 20 years, from NASA POWER data. Not a forecast.
Past results
- 4% fasterFinish times are typically 4% faster than at other trail 50Ks.4 years, 347 finishers; men and women compared separately.
| Year | Event | Finishers | Median | Men | Women |
|---|---|---|---|---|---|
| 2026 | 50-KM · 50K | 82 | 6:23:40 | 6:12:46 | 7:11:38 |
| 2026 | 12-Mile · 12 mi | 130 | 2:31:04 | 2:25:30 | 2:43:56 |
| 2025 | 50-KM · 50K | 83 | 6:14:50 | 6:05:18 | 6:49:11 |
| 2025 | 12-Mile · 12 mi | 131 | 2:24:45 | 2:17:46 | 2:38:12 |
| 2024 | 50-KM · 50K | 97 | 7:02:24 | 6:45:55 | 7:14:30 |
| 2024 | 12-Mile · 12 mi | 145 | 2:34:29 | 2:25:51 | 2:56:14 |
| 2023 | 50-KM · 50K | 85 | 6:42:36 | 6:33:15 | 6:55:12 |
| 2023 | 12-Mile · 12 mi | 149 | 2:34:39 | 2:23:28 | 2:51:56 |
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.