Ultra-Trail Snowdonia by Utmb
Llanberis, United Kingdom • 15-17 May 2026
Event information
Ultra-Trail Snowdonia by UTMB is a UTMB World Series event held in Eryri (Snowdonia), North Wales. The races use technical mountain trails across the national park. In 2025 the event attracted more than 60 nationalities and over 2,800 runners across four distances.
The event schedule in 2026 is mid May. The races are classified within the UTMB World Series and each race carries a Running Stones value.
Races and entries
- 164 km - 9500 m+ elevation gain; Running Stones: 4; Date: 15 May 2026
- 104 km - 6500 m+ elevation gain; Running Stones: 3; Date: 16 May 2026
- 56 km - 3400 m+ elevation gain; Running Stones: 2; Date: 16 May 2026
- 25 km - 1400 m+ elevation gain; Running Stones: 1; Date: 17 May 2026
Registration notes and prices shown on the event page include: UTS 100M listed at £299, UTS 100K at £239, UTS 50K at £189, and ERYRI 25K at £139 (prices exclusive of an 8% booking fee). The UTS 100K and UTS 50K were marked as "Race full - General registrations closed" on the page. Visit the organization's website for the most recent information.