Ultra Running Hub Barmouth, United Kingdom · Saturday, September 5, 2026
Fixed Distance 50K
Snowdonia Sea2Sky 53k
Race completed
54 km Distance
1,640 m Climbing
5.2 Grit · Challenging
What the course asks
Climbing rate 30 m / km
Rolling. Moderate undulations. Requires consistent effort across varying grades.
Time limit 12 hours
13:20 min/km average. Comfortable. Room to walk the climbs and stop at aid. More forgiving than 66% of 50K races. Measured against 1038 races of the same distance. Cut-off calculator →
Field size ~224 Large. Rarely out of sight of another runner.
DUV results for the 2024 edition (53km) — 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 16°C
Night low 9°C
Rainfall Showers likely
Daylight 13 h 27 m of light
Regional 2001-2020 average for September — NASA POWER, grid elevation 255 m. Not a forecast.
Results history
| Year | Race | Finishers | Men's winner | Women's winner |
|---|---|---|---|---|
| 2024 | 53km | 224 | Joseph Farrelly · 04:49:38 | Alice Bourne · 05:39:41 |
22% of the 2024 field were women.
DUV results for the 2024 edition (53km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Course notes
- terrain This is a rolling course. Expect fast, runnable sections where rhythm is key.
- gear With trail terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for 54 km of trail with 1,640 m of ascent.
- Trail Running Shoes 30 m of climb per kilometre — grip and rock protection before cushioning.
- Race Nutrition 54 km of self-supported fuelling between aid stations.
- Hydration Vests Pole attachment and chest-strap stability on steep ground.
- Trekking Poles 1,640 m of ascent to walk up.
- Headlamps A 12 h limit puts you out there after dark.
Similar races
Other 50K trail ultras, closest in distance first.