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Half Marathon Calendar near Sully and Lavernock 2025-2026

Explore the top half marathons near Sully and Lavernock for 2025-2026! We've gathered 29 exciting races in the area. Check out our detailed list below to find your next local race.

December 2025
Dec
13
Sa

Celtic Trail Races

Trail Run 13 mi 26 mi 34 mi
Dec
20
Sa

Nightmare before Xmas Trail ½ Marathon

Trail Run 13 mi
January 2026
Jan
24
Sa

Saturn Running - Cwmdare

Trail Run 3 km 7 km ... Marathon 50 km
Jan
24
Sa

Saturn Running - Aberdare

Backyard Ultra 3 km 5 km ... Marathon 50 km
Jan
25
Su

Chepstow Running Festival Half Marathon

5 km 10 km Half Marathon
February 2026
Feb
1
Su

The Cardiff Half Marathon Winter Warmer Run

5 km 10 km Half Marathon
March 2026
Mar
1
Su

Taunton Half Marathon

Half Marathon
Mar
1
Su

St David's Day Run

5 km 10 km Half Marathon
Mar
1
Su

City Of Newport Half Marathon

Half Marathon
Mar
1
Su

Saturn Running - Cwmdare

Trail Run 3 km 7 km ... Marathon 50 km
Mar
1
Su

Phoenix Running - Cardiff Bay

5 km 10 km Half Marathon Marathon
Mar
22
Su

Merthyr Half Marathon

Half Marathon
April 2026
Apr
5
Su

Brabazon Half Marathon

10 km Half Marathon
Apr
19
Su

Newport Wales Marathon

10 km Half Marathon Marathon
Apr
26
Su

Saturn 7 Hour Time Challenge - Aberdare

3 km 7 km ... Marathon 50 km
Apr
26
Su

Saturn Running - Cwmdare

Trail Run 3 km 7 km ... Marathon 50 km
Apr
26
Su

St David's Day Run

5 km 10 km Half Marathon Marathon
May 2026
May
10
Su

Great Bristol Run

10 km Half Marathon
May
30
Sa

Saturn Running - Cwmdare

Trail Run 3 km 7 km ... Marathon 50 km
June 2026
Jun
14
Su

Cheddar Gorge Challenge

Trail Run 3 km 6 km ... Half Marathon Marathon