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Ultra-Trail Snowdonia by Utmb

Llanberis, United Kingdom • 15-17 May 2026

Event overview

Ultra-Trail Snowdonia by UTMB is a UTMB World Series event held in Eryri (Snowdonia), North Wales. The 2026 event is scheduled for 15 - 17 May 2026 and features technical mountain trails across the Eryri area. In 2025 the event attracted more than 2,800 runners from over 60 nationalities.

Races and entry

  • UTS 100M - 164 km, 9500 m+ elevation, Running Stones 4
  • UTS 100K - 104 km, 6500 m+ elevation, Running Stones 3
  • UTS 50K - 56 km, 3400 m+ elevation, Running Stones 2
  • ERYRI 25K - 25 km, 1400 m+ elevation, Running Stones 1

Registration information on the organiser pages notes that registration conditions include a completed MyUTMB account and UTMB Index. Registrations were made available from 09/09/2025 (10:00 UK local time). Prices listed for 2026 entries are: UTS 100M £299, UTS 100K £239, UTS 50K £189, ERYRI 25K £139, each price exclusive of an 8% booking fee. Visit the organization's website for the most recent information.

United Kingdom Wales Llanberis

Race information

Website
UTMB 20K UTMB 50K UTMB 100K UTMB 100M
164 km
9500 m+
Uts 100m
104 km
6500 m+
Uts 100k
56 km
3400 m+
Uts 50k
25 km
1400 m+
Eryri 25k
Visit the organization's website for the most recent information.
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