Sat
24
Oct
2026
Marathon Eryri
Llanberis, GwyneddWAL
Eryri (Snowdonia)
Marathon· Road
Marathon Eryri — Llanberis, Gwynedd, Wales.
EventsFind this location on a map 1 edition
WALRunningTrail (provisional)43.2K · 43.2 km / 26.8 mi
XTERRA Snowdonia Trail Marathon Eryri — SNOWDONIA TRAIL ULTRA MARATHON ERYRI, STOPPED, SHORTENED
Llanberis, Gwynedd · WAL
No future date listed
About XTERRA Snowdonia Trail Marathon Eryri — SNOWDONIA TRAIL ULTRA MARATHON ERYRI, STOPPED, SHORTENED
XTERRA Snowdonia Trail Marathon Eryri — SNOWDONIA TRAIL ULTRA MARATHON ERYRI, STOPPED, SHORTENED is a running event in Llanberis, Gwynedd, Wales. Recorded disciplines include 43.2K. The listed surface is trail (provisional). No future date is currently listed on ATHRECS. The ATHRECS archive includes editions from 2025. 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
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.
Sat, 12 Jul 2025
43.2K · 43.2 km / 26.8 mi
Past races
43.2K · 43.2 km / 26.8 miFinishedResults
Sat, 12 Jul 2025
Historical UTMB source record. Trail classification provisional. Ascent 1585 m. UTMB Index category 50K is not the course distance.
More running nearby
Sat
23
Jan
2027
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 EventSat
10
Jul
2027
Snowdonia Trail Marathon Eryri
Llanberis, GwyneddWAL
13.2mi / 27.2mi / 44.1K / 9.8K· Trail
Snowdonia Trail Marathon Eryri in Llanberis.
Date
TBC
Ultra-Trail Snowdonia by UTMB® — Eryri 50K
Llanberis, GwyneddWAL
50K / 51.4K / 55.6K / 55K / 56K / 57.7K· Trail (provisional)
Historical results collected from the UTMB Index.
6 past editions
Race detailsDate
TBC
Pedol Peris 2026
Llanberis, GwyneddWAL
Padarn Lake Hotel
17.5mi / 8.2mi· Fell
Pedol Peris 2026 — an officially published 17.5mi race at Padarn Lake Hotel.
Date
TBC
Ultra-Trail Snowdonia by UTMB® — UTS 100K
Llanberis, GwyneddWAL
101.1K / 101.9K / 103.8K / 104.6K / 104K / 106K / 84.6K / 86.2K· Trail (provisional)
Historical results collected from the UTMB Index.
8 past editions
Race detailsDate
TBC
Ultra-Trail Snowdonia by UTMB® — ERYRI 25K
Llanberis, GwyneddWAL
22K / 24.5K / 25.4K / 25K· Trail (provisional)
Historical results collected from the UTMB Index.
4 past editions
Race details