Ut4M 50 Belledonne

Race completed

48 km Distance

not publishedn/a Climbing

2.4 est Grit · Entry level

Calculated from 48 km alone — the organiser has not published an elevation profile. Read 2.4 as a floor, not a verdict.

45.0923° N, 5.9035° E © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Time limit 13 hours 16:15 min/km average. Generous. Walkable throughout for most of the field. Climbing is unpublished, so this pace is a ceiling on the effort, not a measure of it. More forgiving than 84% of 50K races. Measured against 1034 races of the same distance. Cut-off calculator →

Field size ~419 Large. Rarely out of sight of another runner.

DUV results for the 2023 edition (48km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, July

Daytime high 23°C

Night low 11°C

Rainfall Mostly dry

Daylight 15 h 14 m of light

Regional 2001-2020 average for July — NASA POWER, grid elevation 1047 m. Not a forecast.

Results history

Year	Race	Finishers	Men's winner	Women's winner
2023	48km	419	Kevin Roux · 05:33:39	Olivia Godefroy · 06:41:38
2022	48km	324	Anthony Costa · 05:40:30	Claire Dauchez · 07:40:10
2021	46km	359	Alvin Lair · 05:04:43	Gaelle Decorse · 06:10:37

The field grew 29% between 2022 (324) and 2023 (419). 15% of the 2023 field were women.

DUV results for the 2023 edition (48km) — 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

👟 gear

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

By UltraHub Expert

Gear for this race

Chosen for 48 km of trail.

Trail Running Shoes 48 km of trail — cushioning that is still there in the last quarter.
Race Nutrition 48 km of self-supported fuelling between aid stations.
Hydration Vests Flask capacity for 48 km, without the bounce.
Headlamps A 13 h limit puts you out there after dark.
GPS Watches Battery life first — a 48 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

Brooks

Catamount 3

RunRepeat found the Brooks Catamount 3 to have a cozier upper that enhances the overall fit, though breathability and durability could be better. iRunFar noted…

★★★★★ 4.5

Maurten