Oslo, Norway · Saturday, September 12, 2026

Fixed Distance 50 mi

Oslo Maraton - Oslotrippelen

Race completed

73 km Distance

not publishedn/a Climbing

3.7 est Grit · Challenging

Calculated from 73 km alone — the organiser has not published an elevation profile. Read 3.7 as a floor, not a verdict.

59.9127° N, 10.7461° E© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Time limit 9 hours 7:24 min/km average. Firm. Sustained running. Long aid-station stops will cost you. Climbing is unpublished, so this pace is a ceiling on the effort, not a measure of it. Among the tightest 50 mi cut-offs we track. Measured against 455 races of the same distance. Cut-off calculator →

Field size ~113 Mid-sized. Company early, well spread out by halfway.

DUV results for the 2025 edition (73km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, September

Daytime high 14°C

Night low 7°C

Rainfall Showers likely

Daylight 13 h 16 m of light

Regional 2001-2020 average for September — NASA POWER, grid elevation 259 m. Not a forecast.

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 73 km of trail.

Trail Running Shoes73 km of trail — cushioning that is still there in the last quarter.
Race Nutrition73 km of self-supported fuelling between aid stations.
Hydration VestsFlask capacity for 73 km, without the bounce.
GPS WatchesBattery life first — a 73 km day outlasts most full-GPS modes.

Adidas

Terrex Agravic Speed Ultra

★★★★★ 4.5

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

Gel 100

Hydrogel technology for 25g carbs per gel with minimal GI distress.

$3.5 ★★★★★ 4.7

Nathan

VaporKrar 12L

12L race vest co-designed with ultra champion Rob Krar, with insulated bladder pocket.

$170 ★★★★★ 4.6

Garmin

Enduro 3

Ultra-endurance GPS watch with solar charging and 300+ hour battery in GPS mode.

$900 ★★★★★ 4.8

All gear guides →

Course Notes

A scenic and urban course in the heart of Oslo. Gently undulating, with approximately 340 meters of elevation gain on the marathon distance, 170 meters on the half marathon, and 50 meters on the 10K. Start and finish at the same place.

Similar races

Other 50 mi trail ultras, closest in distance first.