Ultra-Trail Snowdonia by UTMB
20K

ERYRI 25K

Sunday, May 17, 2026 at 8:00 AM · Llanberis

24.3 KM
Distance
1,350 M D+
Elevation Gain
1,350 M D-
Elevation Loss
Route
Profile

TERRAIN — 53°07′N · 4°07′W

Under your feet

Surface

Way type

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Segments

Llanberis

Sun 08:00
Sun 08:30
Distance 0.1 km
Altitude 106 m
D+ 0 m
D- 0 m
7.5 km 960 m 0 m
9.59 km/h (6:15/km) 3.49 km/h (17:12/km)

Yr Wyddfa

Sun 08:47
Sun 10:39
Distance 7.6 km
Altitude 1,064 m
D+ 961 m
D- 0 m
6.3 km 0 m 884 m
10.78 km/h (5:34/km) 3.85 km/h (15:35/km)

Bron-y-Fedw

Sun 09:22
Sun 12:17
Sun 12:15
Distance 13.9 km
Altitude 181 m
D+ 961 m
D- 886 m
10.4 km 371 m 447 m
16.47 km/h (3:39/km) 6.08 km/h (9:52/km)

Llanberis

Sun 10:00
Sun 14:00
Sun 14:00
Distance 24.3 km
Altitude 105 m
D+ 1337 m
D- 1337 m

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ERYRI 25K