Guernsey Ultra GU36

Race completed

58 km Distance

1,000 m Climbing

4.4 Grit · Challenging

50.5938° N, 4.8316° W© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 17 m / km Rolling. Moderate undulations. Requires consistent effort across varying grades.

Time limit 10 hours 10:21 min/km average. Generous. Walkable throughout for most of the field. Tighter than 75% of 50K races. Measured against 1007 races of the same distance. Cut-off calculator →

Field size ~38 Small. Long stretches with nobody in sight.

DUV results for the 2021 edition (36mi) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, May

Daytime high 14°C

Night low 10°C

Rainfall Mostly dry

Daylight 15 h 32 m of light

Regional 2001-2020 average for May — NASA POWER, grid elevation 39 m. Not a forecast.

The Aid Station

Course-specific beta from the community

⛰️ terrain

This is a rolling course. Expect fast, runnable sections where rhythm is key.

By UltraHub Expert

👟 gear

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

By UltraHub Expert

Gear for this race

Chosen for 58 km of trail with 1,000 m of ascent.

Trail Running Shoes58 km of trail — cushioning that is still there in the last quarter.
Race Nutrition58 km of self-supported fuelling between aid stations.
Hydration VestsFlask capacity for 58 km, without the bounce.
GPS WatchesBattery life first — a 58 km day outlasts most full-GPS modes.

La Sportiva

Prodigio Pro

RunRepeat found the La Sportiva Prodigio Pro to have a secure, locked-in fit due to its premium upper, and also praised the shoe's energetic ride, particularly…

$225 ★★★★★ 4.6

Adidas