The West Rock Winter Fat Ass Extravaganza 8 Hour Race

45 days away

not publishedn/a Distance

not publishedn/a 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.

41.3959° N, 72.8968° W © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Field size ~14 Tiny. You will run alone for most of it.

DUV results for the 2025 edition (8h) — 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 4°C

Night low -4°C

Rainfall Showers likely

Daylight 9 h 12 m of light

Regional 2001-2020 average for December — NASA POWER, grid elevation 149 m. Not a forecast.

Results history

Year	Race	Finishers	Men's winner	Women's winner
2025	8h	14	Jason Kaplan · 72.098 km	Catherine Walsh · 49.084 km
2024	8h	14	Tobias Tello · 66.948 km	Lila Gaudrault · 87.548 km
2019	8h	38	Andrew Orefice · 82.076 km	Shoko Okabe · 77.248 km

The field has held steady: 14 in 2024, 14 in 2025. 14% of the 2025 field were women.

DUV results for the 2025 edition (8h) — ranked runners 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 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.

Adidas

Terrex Speed Ultra

RunRepeat found the Adidas Terrex Speed Ultra to have a grippy outsole and great lockdown, while iRunFar noted that the shoe works on a variety of trail conditi…

★★★★★ 4.5

Asics