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Events
WALRunningTrail (provisional)50K · 50 km / 31.1 mi51.4K · 51.4 km / 31.9 mi55.6K · 55.6 km / 34.5 mi55K · 55 km / 34.2 mi56K · 56 km / 34.8 mi57.7K · 57.7 km / 35.9 mi

Ultra-Trail Snowdonia by UTMB® — Eryri 50K

Llanberis, Gwynedd · WAL

No future date listed
Calendar

About Ultra-Trail Snowdonia by UTMB® — Eryri 50K

Ultra-Trail Snowdonia by UTMB® — Eryri 50K is a running event in Llanberis, Gwynedd, Wales. Recorded disciplines include 50K, 51.4K, 55.6K, 55K, 56K, 57.7K. The listed surface is trail (provisional). No future date is currently listed on ATHRECS. The ATHRECS archive includes editions from 2021 to 2026. This describes the editions recorded here, not the event's founding date or complete history.

Dates, starts & entry

Times are local to the race. Select the entry route for your distance.

The next date has not been announced here. Check the race website for updates.

Location & race day

Listed venue / area

Llanberis, GwyneddWAL

Find this location on a map

Confirm the exact start line, parking and arrival instructions with the organiser. A listed town or postcode may cover a wider area.

About the race

Historical course record. Trail classification is provisional, based on inclusion in the UTMB Index; course surface has not been independently verified. Actual course distances are retained separately from UTMB Index categories.

Surface:
Trail (provisional)

Results

Public-figure or athlete-approved ATHRECS results, plus verified organiser links.

6 editions

Sat, 16 May 2026

56K · 56 km / 34.8 mi
Results · utmb.world

Sat, 17 May 2025

57.7K · 57.7 km / 35.9 mi
Results · utmb.world

Sat, 11 May 2024

55.6K · 55.6 km / 34.5 mi
Results · utmb.world

Sat, 13 May 2023

55K · 55 km / 34.2 mi
Results · utmb.world

Sat, 2 Jul 2022

50K · 50 km / 31.1 mi
Results · utmb.world

Sat, 11 Sept 2021

51.4K · 51.4 km / 31.9 mi
Results · utmb.world

Past races

56K · 56 km / 34.8 miFinishedResults

Sat, 16 May 2026

Historical UTMB source record. Trail classification provisional. Ascent 3400 m. UTMB Index category 50K is not the course distance.

57.7K · 57.7 km / 35.9 miFinishedResults

Sat, 17 May 2025

Historical UTMB source record. Trail classification provisional. Ascent 3370 m. UTMB Index category 50K is not the course distance.

55.6K · 55.6 km / 34.5 miFinishedResults

Sat, 11 May 2024

Historical UTMB source record. Trail classification provisional. Ascent 3388 m. UTMB Index category 50K is not the course distance.

55K · 55 km / 34.2 miFinishedResults

Sat, 13 May 2023

Historical UTMB source record. Trail classification provisional. Ascent 3300 m. UTMB Index category 50K is not the course distance.

50K · 50 km / 31.1 miFinishedResults

Sat, 2 Jul 2022

Historical UTMB source record. Trail classification provisional. Ascent 3100 m. UTMB Index category 50K is not the course distance.

51.4K · 51.4 km / 31.9 miFinishedResults

Sat, 11 Sept 2021

Historical UTMB source record. Trail classification provisional. Ascent 3320 m. UTMB Index category 50K is not the course distance.

More running nearby

Fri

14

May

2027

Eryri by UTMB®

Llanberis, GwyneddWAL

100K / 100M / 20K / 50K / Ultra· Trail

Eryri by UTMB® — an official UTMB World Series Event.

UTMB World Series Event

Start time TBC

Entries open

Details & entryRace website