Ultra Running Hub Lawrence, KS, United States · Saturday, January 23, 2027
Cactus Roulette Endurance - 12h Owl
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 2025 edition (12h) — ranked runners only. Starters are not published, so the field was at least this big and no finish rate can be given.
Typical conditions, January
Regional 2001-2020 average for January — NASA POWER, grid elevation 293 m. Not a forecast.
Results history
| Year | Race | Finishers | Men's winner | Women's winner |
|---|---|---|---|---|
| 2025 | 12h | 6 | Damon Mar · 73.547 km | Nicole Yedlinsky · 50.211 km |
| 2025 | 12h | 16 | David Mullins · 76.604 km | Kathy Errthum · 62.442 km |
| 2024 | 12h | 15 | Damon Mar · 70.650 km | Kathy Errthum · 71.776 km |
| 2024 | 12h | 8 | Calvin Duvall · 81.593 km | Suzie Stephensen · 68.236 km |
| 2023 | 12h | 5 | Calvin Duvall · 75.961 km | Abigail Milian · 60.028 km |
| 2023 | 12h | 6 | David Mullins · 77.731 km | Catherine Clifford · 70.972 km |
| 2022 | 12h | 4 | Sean Frost · 71.133 km | Sara Wilcox · 65.822 km |
| 2022 | 12h | 9 | Tyler McDaniel · 97.204 km | Jordan Shrack · 65.661 km |
17% of the 2025 field were women.
DUV results for the 2025 edition (12h) — 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.
- Headlamps A 12 h limit puts you out there after dark.
- GPS Watches Battery life first — an ultra outlasts most full-GPS modes.
Similar races
Other trail ultras of the same format.