Swallow, United Kingdom · Saturday, September 12, 2026

Fixed Distance 50mi

Yellow Belly Summer 50

21 days to go

80 km Distance

1,370 m Climbing

6.1 Grit · Hardcore

What the course asks

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

Time limit 18 hours 13:30 min/km average. Generous. Walkable throughout for most of the field.

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 80 km of trail with 1,370 m of ascent.

Trail Running Shoes80 km of trail — cushioning that is still there in the last quarter.
Race Nutrition80 km of self-supported fuelling between aid stations.
Hydration VestsFlask capacity for 80 km, without the bounce.
HeadlampsA 18 h limit puts you out there after dark.
GPS WatchesBattery life first — a 80 km day outlasts most full-GPS modes.

Salomon

Ultra Glide 4

$159.95 ★★★★★ 4.6

Check Price

La Sportiva

Prodigio Pro

$225 ★★★★★ 4.6

Check Price

Tailwind

Endurance Fuel

All-in-one calorie and electrolyte drink mix. 200 calories per serving.

$25 ★★★★★ 4.8

Nathan

VaporKrar 12L

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

$170 ★★★★★ 4.6

Petzl

NAO RL

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

$150 ★★★★★ 4.7

Garmin

Enduro 3

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

$900 ★★★★★ 4.8

All gear guides →

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