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Events
WALRunningTrail100K · 100 km / 62.1 mi100M20K · 20 km / 12.4 mi50K · 50 km / 31.1 miUltra · 50 km+ / 31+ miUTMB World Series Event

Eryri by UTMB®

Llanberis, Gwynedd · WAL

Next race day

Fri, 14 May 2027

2 distances · see start times below

Race websiteEntry detailsCalendar

About Eryri by UTMB®

Eryri by UTMB® is a running event in Llanberis, Gwynedd, Wales. Recorded disciplines include 100K, 100M, 20K, 50K, Ultra. The listed surface is trail. The listed organiser is UTMB World Series / local organiser. The next listed date is 14 May 2027. Check the organiser's information for entry and race-day arrangements.

Dates, starts & entry

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

  • 78K · 78 km / 48.5 mi

    Fri, 14 May 2027

    Start time not yet confirmed

    Entries open

    Entry details

    Eryri 80K: 78 km, starting at Caernarfon.

    Edition source

  • 163K · 163 km / 101.3 mi

    Fri, 14 May 2027

    Start time not yet confirmed

    Entries open

    Entry details

    Eryri 100M: 163 km, starting at Llanberis.

    Edition source

  • 56K · 56 km / 34.8 mi

    Sat, 15 May 2027

    Start time not yet confirmed

    Entries open

    Entry details

    Eryri 50K: 56 km, starting at Llanberis.

    Edition source

  • 108K · 108 km / 67.1 mi

    Sat, 15 May 2027

    Start time not yet confirmed

    Entries open

    Entry details

    Eryri 100K: 108 km, starting at Llanberis.

    Edition source

  • 25K · 25 km / 15.5 mi

    Sun, 16 May 2027

    Start time not yet confirmed

    Entries open

    Entry details

    Eryri 25K: 25 km, starting at Llanberis.

    Edition source

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

Official UTMB World Series event in Llanberis, North Wales, United Kingdom. Check the organiser page for the individual races, mandatory kit, entry requirements and current Running Stones information.

Surface:
Trail
Organiser:
UTMB World Series / local organiser
Race website

Series & qualification

Classification is checked against the official series source and recorded by edition where qualification status can change.

UTMB World Series EventChecked 2026-08-17

Official UTMB World Series Event; eligible finishers can earn Running Stones and record a UTMB Index result.

Official classification source ↗

Ways to enter

Compare the listed booking routes. Verified links show when they were checked.

Fri, 14 May 2027

Third-party prices, booking fees, allocations and refund terms can differ. Confirm the final details with the provider before paying.

Results

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

No verified results links have been added yet.

Past races

None listed yet.

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