Fort Augustus, United Kingdom · Saturday, July 4, 2026

Fixed Distance 50 mi

Great Glen Ultra Marathon 42mi

Race completed
68 km Distance
6,000 m Climbing
10.0 Grit · Elite / extreme
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57.1448° N, 4.6814° W © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 88 m / km Vertical. Extreme verticality. This is a technical mountain course with sustained steep grades.
Time limit 13 hours 11:28 min/km average. Generous. Walkable throughout for most of the field. About average for a 50 mi. Measured against 445 races of the same distance. Cut-off calculator →
Field size ~27 Small. Long stretches with nobody in sight.

DUV results for the 2024 edition (42mi) — 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 15°C
Night low 9°C
Rainfall Showers likely
Daylight 17 h 46 m of light

Regional 2001-2020 average for July — NASA POWER, grid elevation 483 m. Not a forecast.

The Aid Station

Course-specific beta from the community

⛰️ terrain

This is a vertical course. Poles are highly recommended for the sustained climbs.

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 68 km of trail with 6,000 m of ascent.

Brooks

Catamount 3

★★★★★ 4.5

La Sportiva

Prodigio Pro

$225 ★★★★★ 4.6

Skratch Labs

Sport Hydration Mix

Clean electrolyte drink mix with real fruit flavor. Low sugar.

$20 ★★★★★ 4.5

Salomon

ADV Skin 12

Industry-standard 12L race vest with front flask pockets and minimal bounce.

$180 ★★★★★ 4.8

Komperdell

Carbon Ultralight Vario 4

4-section folding carbon poles with compact pack size for mandatory gear.

$160 ★★★★★ 4.5

Petzl

NAO RL

1500-lumen reactive lighting headlamp with 15-hour runtime. Automatic brightness adjustment.

$150 ★★★★★ 4.7
All gear guides →

Course Notes

The route starts at Fort Augustus Village Hall and follows the Great Glen Way High Route where you will head off uphill with stunning views of Loch Ness all the way to Drumnadrochit. The final climb takes you over the hill and finishes at Inverness.

Similar races

Other 50 mi trail ultras, closest in distance first.