Welwyn Garden City close

Half Marathon Calendar near Welwyn Garden City 2025-2026

Header image
Monthly updates for Welwyn Garden City

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

Explore the top half marathons near Welwyn Garden City for 2025-2026! We've gathered 185 exciting races in the area. Check out our detailed list below to find your next local race.

May 2026
May
17
Su

The Maypole Project Chislehurst Half Marathon

Half Marathon
May
24
Su

Richmond Park Half Marathon

Half Marathon
May
30
Sa

RunThrough - Battersea Park

10 km Half Marathon
May
31
Su

Circuit du Sore Legs

Backyard Ultra 5 km 10 km ... 50 km 6 hr
June 2026
Jun
6-7
Sa - Su

Show Me The Manet

Half Marathon Marathon 50 km
Jun
6
Sa

Run Dorney Lake Marathon

5 km 10 km Half Marathon
Jun
6
Sa

RunThrough - Battersea Park

10 km Half Marathon
Jun
7
Su

Hitchin Half Marathon & Tough 10 Miler

5 mi 10 mi 13 mi
Jun
7
Su

Hitchin Hard Half Marathon

8 km 16 km Half Marathon
Jun
7
Su

Saturn Running - Staines-upon-Thames

3 km 5 km ... 50 km 7 hr
Jun
7
Su

Saturn 7 Hour Time Challenge - Staines-upon-Thames

3 km 7 km ... Marathon 50 km
Jun
7
Su

The One in the Park - Richmond

10 km Half Marathon
Jun
14
Su

ATW St Albans Half Marathon

2 mi 5 km 10 km Half Marathon
Jun
14
Su

Wendover Woods Half Marathon

Trail Run 10 km Half Marathon
Jun
14
Su

Saturn Running - Staines-upon-Thames

3 km 5 km ... Marathon 50 km
Jun
21
Su

Dunstable Downs Half Marathon

Trail Run Half Marathon
Jun
21
Su

RunThrough - Finsbury Park

5 km 10 km Half Marathon
Jun
21
Su

Wimbledon Half Marathon

10 km Half Marathon
Jun
26-28
Fr - Su

Colworth Marathon Challenge

Trail Run 5 mi 8 mi 13 mi
Jun
27
Sa

Zigzag - Cock-A-Doodle Dawdle

Trail Run 5 km 10 km ... Half Marathon Marathon