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Marathon calendar Wales 2024-2025

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Explore the best marathons in Wales for 2024-2025! Our updated list features 22 exciting races across the region. Find your next race in Wales below and join the running community at these great events!

December 2024
Dec
8
Sunday

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

Trail Run 21 km 42 km 51 km
Dec
14
Saturday

Winter Celtic Trail Races

Trail Run 13 mi 26 mi 34 mi
January 2025
Jan
11
Saturday

The Winter Run to the Castle Ultra

42 km 67 km
February 2025
Feb
22
Saturday

Saturn 7 Hour Time Challenge - Aberdare

5 km 7 km ... 42 km 50 km
March 2025
Mar
1
Saturday

Saturn 7 Hour Time Challenge - Aberdare

5 km 7 km ... 42 km 50 km
Mar
16
Sunday

Great Welsh Marathon Events

21 km 42 km
Mar
22
Saturday

Saturn 7 Hour Time Challenge - Aberdare

5 km 7 km ... 42 km 50 km
April 2025
Apr
13
Sunday

The Pendine Sands Races

Trail Run 5 km 10 km 21 km 42 km
Apr
13
Sunday

Newport Wales Marathon

10 km 13 mi 26 mi
Apr
26-27
Sa - Su

Rasus y Bannau

Trail Run 42 km 72 km 100 km
Apr
26
Saturday

Endurancelife | Pembrokeshire

Trail Run 10 km 13 mi 26 mi 34 mi
May 2025
May
15-19
Th - Mo

Severn Challenge

Trail Run 26 mi 29 mi ... 57 mi 59 mi
May
17
Saturday

OTT Marathon

Trail Run 10 mi 26 mi
June 2025
Jun
14
Saturday

Limitless Trails - Black Mountains

Trail Run 21 km 42 km 50 km 80 km
Jun
14
Saturday

Black Mountains 50

Trail Run 13 mi 26 mi 32 mi 50 mi
July 2025
Jul
12
Saturday

Xterra Snowdonia Trail Marathon Eryri

Trail Run 10 km 13 mi 26 mi 57 km
Jul
19-20
Sa - Su

Gower Peninsula Ultra Challenge

Trail Run 10 km 25 km ... 75 km 100 km
Jul
20
Sunday

Wye Valley Tunnel Run

Trail Run 10 km 21 km 42 km
September 2025
Sep
20
Saturday

The Maverick X Series Afan Forest

Trail Run 10 km 25 km 42 km 50 km
October 2025
Oct
25
Saturday

Marathon Eryri

42 km