Ultra Running Hub Gaithersburg, MD, United States · Saturday, March 6, 2027
Fixed Distance 50K
Seneca Creek Greenway Trail 50k
151 days away
50 km Distance
not publishedn/a Climbing
2.5 est Grit · Entry level
Calculated from 50 km alone — the organiser has not published an elevation profile. Read 2.5 as a floor, not a verdict.
What the course asks
Time limit 8 hours
9:36 min/km average. Tight. Climbing is unpublished, so this pace is a ceiling on the effort, not a measure of it. Tighter than 84% of 50K races. Measured against 1046 races of the same distance. Cut-off calculator →
Field size ~178 Mid-sized. Company early, well spread out by halfway.
DUV results for the 2026 edition (50km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Typical conditions, March
Daylight 11 h 30 m of light
Results history
| Year | Race | Finishers | Men's winner | Women's winner |
|---|---|---|---|---|
| 2026 | 50km | 178 | Nicolas Crouzier · 03:55:01 | Yukino Parle · 04:50:43 |
| 2025 | 50km | 158 | Marshall Lieder · 04:09:35 | Mikka Kei MacDonald · 04:44:41 |
| 2024 | 50km | 112 | Jacob Felice · 04:29:45 | Kinley Bollinger · 05:27:14 |
| 2023 | 50km | 117 | Nicolas Crouzier · 04:03:39 | Mikka Kei MacDonald · 05:00:52 |
| 2021 | 50km | 92 | Nicolas Crouzier · 03:51:43 | Kristen Serafin · 05:44:23 |
| 2020 | 50km | 167 | Nicolas Crouzier · 04:07:07 | Rylee Schwee · 05:23:20 |
| 2019 | 50km | 119 | Nicolas Crouzier · 04:11:12 | Helene Dumais · 05:28:20 |
| 2017 | 50km | 156 | Adrian Spencer · 04:04:55 | Meghan Landymore · 04:44:49 |
| 2016 | 50km | 129 | Michael Wurzbacher · 04:19:11 | Elaine Griesbach · 05:47:57 |
| 2015 | 50km | 106 | Michael Wurzbacher · 04:21:17 | Margaret Campbell · 05:54:40 |
The field grew 13% between 2025 (158) and 2026 (178). 28% of the 2026 field were women.
DUV results for the 2026 edition (50km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Course notes
- gear With trail terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for 50 km of trail.
- Trail Running Shoes 50 km of trail — cushioning that is still there in the last quarter.
- Race Nutrition 50 km of self-supported fuelling between aid stations.
- Hydration Vests Flask capacity for 50 km, without the bounce.
- GPS Watches Battery life first — a 50 km day outlasts most full-GPS modes.
Similar races
Other 50K trail ultras, closest in distance first.