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Running Calendar near Llanberis 2025-2026

Explore the top running races near Llanberis for 2025-2026! We've gathered 35 exciting races in the area. Check out our detailed list below to find your next local race.

September 2025
Sep
20
Saturday

The Brutal Extreme Triathlon

Trail Run
October 2025
Oct
5
Sunday

Bangor City Half Marathon

10 km 13 mi
Oct
19
Sunday

Abergele 5k & 10k

5 km 10 km
Oct
25
Saturday

Marathon Eryri

42 km
November 2025
Nov
9
Sunday

Anglesey Trail Half Marathon

Trail Run 10 km 13 mi
Nov
15-16
Sa - Su

Slate Trail Ultra

Trail Run 88 km 145 km
Nov
16
Sunday

Conwy Half Marathon

13 mi
Nov
16
Sunday

Guided Trail Run - Dolwyddelan

Trail Run 10 km
February 2026
Feb
15
Sunday

Nick Beer Llandudno 10k

10 km
March 2026
Mar
1
Sunday

Jones O Gymru Anglesey Half Marathon

10 km 13 mi
Mar
14
Saturday

Beast Of The Blacks

Trail Run 10 mi 20 mi 40 mi
April 2026
Apr
14
Tuesday

MTC Angelystor

37 mi
Apr
14-19
Tu - Su

MTC Cymrun 26

34 mi 37 mi ... 47 mi 50 mi
Apr
15
Wednesday

MTC Cerridwen

50 mi
May 2026
May
10
Sunday

Snowdonia Half Marathon

13 mi
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