Available distances
Races on the programme
| Race | Distance | Elevation gain |
|---|---|---|
| Snowdonia Half Marathon | — | 5,230 ft |
About
The Snowdonia Half Marathon is a tough half marathon (21.1 km) based in Llanrwst, North Wales, on 10 May 2027, starting at 10:00. It is renowned for its demanding course through the breathtaking scenery of Snowdonia National Park.
Runners start and finish in Llanrwst, a town known for hosting the World Trail Running Championships, and push themselves across wild, rocky mountains, hidden valleys, cascading rivers, glacial lakes and deep forests. Every finisher receives a personalised medal and a technical T-shirt, making this half marathon a real test of endurance and a rewarding experience for keen runners.
Prepare for Snowdonia Half Marathon with RunRun
An AI-generated training plan, adjusted every week based on your real sessions. Built around your goal, current level and race date.
- Personalized plan based on your VO2max, history and weekly availability
- Strava and Garmin sync: your sessions are analyzed and the plan adapts
- Target paces, long runs, key sessions: everything is calculated for race day
Races nearby
Other upcoming races around Llanrwst.
Snowdon Skyline
Jun 22, 2027 · Betws-y-Coed · 3 mi away
24.9 mi · 14.9 mi
Snowdon Ultra 50
Aug 31, 2027 · Betws-y-Coed · 3 mi away
49.7 mi
Snowdonia Ultra 100
Aug 31, 2027 · Betws-y-Coed · 3 mi away
99.4 mi
Conwy Half Marathon
Nov 15, 2026 · Llandudno Junction · 10 mi away
13.1 mi · 1 mi
Race Across Snowdonia
Jul 12, 2027 · Abergwyngregyn · 11 mi away
76.4 mi
Snowdonia Marathon Eryri
Oct 24, 2026 · Llanberis · 12 mi away
26.2 mi