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Marathon Calendar near Chepstow 2025-2026

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Monthly updates for Chepstow

Get new running races (and updates) in your inbox every month.

Explore the top marathons near Chepstow for 2025-2026! We've gathered 39 exciting races in the area. Check out our detailed list below to find your next local race.

December 2025
Dec
18
Th

12 Drummers Drumming Run

Trail Run 5 km 10 km Half Marathon Marathon
January 2026
Jan
12
Mo

The Slothful Run

Trail Run 5 km 10 km Half Marathon Marathon
Jan
12-18
Mo - Su

The 7 Deadly Sins 7in7

Trail Run 5 km 10 km Half Marathon Marathon
Jan
13
Tu

The Proud Run

Trail Run 5 km 10 km Half Marathon Marathon
Jan
14
We

The Lusty Run

Trail Run 5 km 10 km Half Marathon Marathon
Jan
15
Th

The Angry Run

Trail Run 5 km 10 km Half Marathon Marathon
Jan
16
Fr

The Gluttonous Run

Trail Run 5 km 10 km Half Marathon Marathon
Jan
17
Sa

The Greedy Run

Trail Run 5 km 10 km Half Marathon Marathon
Jan
18
Su

The Envious Run

Trail Run 5 km 10 km Half Marathon Marathon
February 2026
Feb
14
Sa

Phoenix Running - Trelewis

Backyard Ultra 5 km 10 km Half Marathon Marathon
Feb
20
Fr

Phoenix Running - Brimscombe

Trail Run 5 km 10 km Half Marathon Marathon
Feb
22
Su

Two Tunnels Races

Trail Run 5 km 10 km ... Marathon 50 km
March 2026
Mar
1
Su

Brecon to Cardiff Xtreme

Trail Run Marathon 75 km
Mar
1
Su

Phoenix Running - Cardiff Bay

5 km 10 km Half Marathon Marathon
April 2026
Apr
19
Su

Newport Wales Marathon

10 km Half Marathon Marathon
Apr
19
Su

Bath & Bristol Railway Races

10 km Half Marathon ... Marathon 50 km
Apr
26
Su

St David's Day Run

5 km 10 km Half Marathon Marathon
June 2026
Jun
14
Su

Cheddar Gorge Challenge

Trail Run 3 km 6 km ... Half Marathon Marathon
July 2026
Jul
11
Sa

Black Mountains 50

Trail Run 13 mi 26 mi 32 mi 50 mi
Jul
19
Su

Wye Valley Tunnel Run

Trail Run 10 km Half Marathon Marathon