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Half Marathon Calendar Wales 2026-2027

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Monthly updates for Wales

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Explore the best half marathons in Wales for 2026-2027! Our updated list features 62 exciting races across the region. Find your next race in Wales below and join the running community at these great events!

November 2026
Nov
1
Su

Anglesey Trail Half Marathon

Trail Run 10 km Half Marathon
Nov
1
Su

MoRun Cardiff

5 km 10 km Half Marathon
Nov
1
Su

Cardiff Half Marathon MoRun

5 km 10 km Half Marathon
Nov
7
Sa

Beacons Ultra

Trail Run 13 mi 26 mi 49 mi
Nov
14
Sa

Afan Forest Trail Half Marathon

10 km Half Marathon
Nov
14
Sa

Trail Half Marathon Wales

Trail Run 10 km Half Marathon
Nov
15
Su

Conwy Half Marathon

13 mi
Nov
21
Sa

Saturn Running - Aberdare

Backyard Ultra 3 km 5 km ... Marathon 50 km
Nov
28
Sa

Loggerheads Half Marathon

Trail Run 7 km Half Marathon
December 2026
Dec
6
Su

Sea 2 Summit - Offa's Dyke Half/Full/Ultra

Trail Run Half Marathon Marathon 56 km
Dec
12
Sa

Celtic Trail Races

Trail Run 13 mi 26 mi 34 mi
Dec
19
Sa

Nightmare before Xmas Trail ½ Marathon

Trail Run 13 mi
January 2027
Jan
24
Su

Chepstow Running Festival Half Marathon

5 km 10 km Half Marathon
February 2027
Feb
28
Su

Saturn Running - Aberdare

Backyard Ultra 3 km 5 km ... Marathon 50 km
March 2027
Mar
14
Su

Merthyr Half Marathon

Half Marathon
April 2027
Apr
4
Su

Llandudno Half Marathon

10 mi Half Marathon
Apr
11
Su

Pendine Sands Races

Trail Run 5 km 11 km ... 26 mi 33 mi
Apr
18
Su

Newport Wales Marathon

10 km 13 mi 26 mi
May 2027
May
23
Su

Anglesey Half Marathon

10 km 13 mi
May
29
Sa

Welsh Festival of Running

Trail Run 5 km 10 km ... 50 km 80 mi
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