Grand Valley Backyard

335 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.

39.1958° N, 108.8132° W © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Field size ~8 Tiny. You will run alone for most of it.

DUV results for the 2026 edition (9h) — ranked runners only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, October

Daytime high 17°C

Night low 2°C

Rainfall Mostly dry

Daylight 11 h 47 m of light

Regional 2001-2025 average for October — NASA POWER, grid elevation 1904 m. Not a forecast.

Results history

Year	Race	Finishers	Men's winner	Women's winner
2026	9h	8	Shane Massey · 60.354 km	Kate Avery · 53.648 km

38% of the 2026 field were women.

DUV results for the 2026 edition (9h) — 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

Salomon