Running
Mynydd "L"
21.1 km
Ras yr Wyddfa (Snowdon Race)
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Trail in United Kingdom, Llanberis
Distances
Trail
Mynydd A (Long)
15.4 km
Start: 02:00 AM
90.00 EUR
Running
Mynydd "A"
10.5 km
Trail
Mynydd L (Short)
7.5 km
Start: 02:00 AM
70.00 EUR
About
The International Snowdon Race is a mountain running event held annually on Wales’ highest mountain, attracting elite and recreational runners to race 15.35 km with 994 m of ascent.
Catering & aid stations
Aid stations and food/water available on course. Post-race meal available for registered runners at the Royal Victoria Hotel.
Pacers
Pacemakers are provided for both Mynydd A and Mynydd L waves on race day. Follow your assigned Pacerflaggen and target times published on the Renntag für Laufende schedule; pace setters will carry flags to help you stay on target.
Results
View official resultsTypical weather in Llanberis
Monthly averages based on historical data (2000–present).
Jan7°3°
↑ 08:24
↓ 16:28
Feb7°3°
↑ 07:37
↓ 17:27
Mar9°3°
↑ 06:31
↓ 18:21
Apr12°5°
↑ 06:17
↓ 20:17
May15°8°
↑ 05:18
↓ 21:09
Jun17°11°
↑ 04:50
↓ 21:46
Jul18°12°
↑ 05:10
↓ 21:37
Aug18°13°
↑ 05:59
↓ 20:45
Sep16°11°
↑ 06:52
↓ 19:34
Oct13°9°
↑ 07:44
↓ 18:22
Nov10°6°
↑ 07:42
↓ 16:22
Dec8°4°
↑ 08:25
↓ 16:00
Prices & signup
- Mynydd A (Long)90.00 EUR
- Mynydd L (Short)70.00 EUR
Last updated: Jun 5, 2026, 11:36:28 PM
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