Eryri Snowdonia by UTMB 2027

Llanberis, United Kingdom, 14 May 2027

163 km mountain ultra in Eryri (Snowdonia), starting and finishing in Llanberis. UTMB lists 9,200 m of ascent and a 48-hour time limit. The route is the event’s grand tour of Eryri, linking technical mountain trails, exposed ridgelines, valleys, villages, and major summits across the national park.

5 distances from 24 to 161 km, up to 9,438 m of climb.

Distances

161 km: 161 km, 9438 m of climb, highest point 1066 m, 14 May 2027.
163 km mountain ultra in Eryri (Snowdonia), starting and finishing in Llanberis. UTMB lists 9,200 m of ascent and a 48-hour time limit. The route is the event’s grand tour of Eryri, linking technical mountain trails, exposed ridgelines, valleys, villages, and major summits across the national park.
78 km: 78 km, 2634 m of climb, highest point 992 m, 14 May 2027.
Official UTMB 78 km point-to-point race from Caernarfon to Llanberis with 2,500 m+ elevation gain, starting Friday evening on the coast and finishing in Eryri (Snowdonia) National Park. The route is described by the organizer as semi-autonomous/self-sufficient with aid stations and medical cover at strategic points.
106 km: 106 km, 5956 m of climb, highest point 1066 m, 15 May 2027.
Mountain ultra in Eryri (Snowdonia) National Park starting in Llanberis. The official race page describes a route through northern Eryri with technical ridges, remote valleys, glacial lakes, major climbing, and a 30-hour time limit.
57 km: 57 km, 3334 m of climb, highest point 1066 m, 15 May 2027.
Official UTMB variant starting and finishing in Llanberis, Eryri (Snowdonia), North Wales. Public UTMB pages describe it as a 50K-category mountain ultra of about 56 km with roughly 3,400 m ascent; the official aid-station feed currently totals 57.59 km. Public checkpoints show the route going via Bwlch Glas (Finger Stone), Gwastadanas Farm, Yr Wyddfa, Bron y Fedw Uchaf, Mynydd Mawr, Betws Garmon, Moel Eilio, then back to Llanberis.
24 km: 24 km, 1360 m of climb, highest point 1066 m, 16 May 2027.
Official Eryri 25K course at Eryri by UTMB. The race page lists 25 km distance, 1,300 m+ elevation gain, start/finish in Llanberis, Sunday 16 May 2027 start at Llanberis, and a 5 hours 30 minutes maximum allowed race time. The schedule page shows three start waves at 08:00, 08:15, and 08:30; the race page itself lists 08:30 as the race start.