Peoria, AZ, United States · Monday, December 28, 2026

Timed 12 hours

Across the Years, 12h

89 days away

not publishedn/a Distance

6 m Climbing

not publishedn/a Grit

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.

33.5806° N, 112.2374° W © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Field size ~54 Small. Long stretches with nobody in sight.

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, December

Daytime high 18°C

Night low 5°C

Rainfall Dry — rain unlikely

Daylight 9 h 56 m of light

Regional 2001-2020 average for December — NASA POWER, grid elevation 398 m. Not a forecast.

Results history

Year	Race	Finishers	Men's winner	Women's winner
2025	12h	54	Matt Heacock · 113.529 km	Megan Eckert · 130.691 km
2024	12h	39	Avinoam Maier · 124.685 km	Carmen Aguirre · 97.481 km
2024	12h	26	Alexander Belotz · 90.680 km	Natalie Larson · 113.349 km
2023	12h	18	Mark Hammond · 119.719 km	Krista Fasciano · 89.368 km
2022	12h	7	Kameron Harder · 116.347 km	Lindsay Nicoson · 91.053 km
2020	12h	14	James Nalley · 99.486 km	Chrissy Parks · 97.800 km

The field grew 38% between 2024 (39) and 2025 (54). 43% 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

👟 gear

With trail terrain, choose a shoe with moderate cushioning for optimal performance.

By UltraHub Expert

Gear for this race

Chosen for this trail race with 6 m of ascent.

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.

Salomon

Sense Ride 5

RunRepeat found the Salomon Sense Ride 5 to have immaculate lockdown and a smooth and stable ride, making it confident on moderate trails and steep downhills. I…

★★★★★ 4.5

Asics