Ultra Running Hub Smithfield, VA, United States · Saturday, June 12, 2027
Windsor Castle 10 Hour Run
We hold no course length for this race — a timed or backyard event is measured by the clock, not the kilometre — so there is no Grit score to give you.
What the course asks
DUV results for the 2026 edition (10h) — ranked runners only. Starters are not published, so the field was at least this big and no finish rate can be given.
Typical conditions, June
Regional 2001-2020 average for June — NASA POWER, grid elevation 23 m. Not a forecast.
Results history
| Year | Race | Finishers | Men's winner | Women's winner |
|---|---|---|---|---|
| 2026 | 10h | 49 | Kyle Curling · 89.801 km | Emily Barrineau Spencer · 84.812 km |
| 2024 | 10h | 63 | Frank Leone · 89.801 km | Keavy Baylor · 94.806 km |
| 2023 | 10h | 54 | Mitchell Spittle · 99.779 km | Cynthia Robbs · 84.860 km |
| 2022 | 10h | 32 | Timothy Suhr · 80.467 km | Amber Kuszak · 85.150 km |
| 2021 | 10h | 105 | Steve Speirs · 108.823 km | Amber Kuszak · 89.897 km |
The field shrank 22% between 2024 (63) and 2026 (49). 37% of the 2026 field were women.
DUV results for the 2026 edition (10h) — ranked runners only. Starters are not published, so the field was at least this big and no finish rate can be given.
The Aid Station
Course-specific beta from the community
With trail terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for this trail race.
- Trail Running Shoes Cushioning on trail that is still there in the last quarter.
- Race Nutrition Self-supported fuelling between aid stations.
- Hydration Vests Flask capacity without the bounce.
- GPS Watches Battery life first — an ultra outlasts most full-GPS modes.
Similar races
Other trail ultras of the same format.