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 1034 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.

Results history

Year	Race	Finishers	Men's winner	Women's winner
2021	36mi	38	Clint King · 04:58:49	Louise Smith · 05:33:58
2019	36mi	111	Clint King · 05:04:10	Vicky Carre · 06:13:30
2018	36mi	75	Christiaan Dirk (Tiaan) Erwee · 04:19:44	Nancy Connolly · 06:09:36
2017	36mi	59	Graham Booty · 05:34:26	Vicky Carre · 06:41:45

The field shrank 66% between 2019 (111) and 2021 (38). 18% of the 2021 field were women.

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.

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 Shoes 58 km of trail — cushioning that is still there in the last quarter.
Race Nutrition 58 km of self-supported fuelling between aid stations.
Hydration Vests Flask capacity for 58 km, without the bounce.
GPS Watches Battery 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

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

Spring Energy