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Half Marathon Calendar near Welwyn Garden City 2025-2026

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Explore the top half marathons near Welwyn Garden City for 2025-2026! We've gathered 176 exciting races in the area. Check out our detailed list below to find your next local race.

September 2026
Sep
6
Sunday

Wimbledon Half Marathon

10 km Half Marathon
Sep
12-13
Sa - Su

The Flying Scotsman

Half Marathon Marathon
Sep
20
Sunday

Bradenham Blast

Trail Run 5 km 10 km Half Marathon
Sep
26
Saturday

Run Dorney Lake Half Marathon

5 km 10 km Half Marathon
Sep
27
Sunday

Windsor Half Marathon

Half Marathon
October 2026
Oct
3
Saturday

Run Dorney Lake Half Marathon

5 km 10 km Half Marathon
Oct
4
Sunday

Welwyn Half Marathon

10 km Half Marathon
Oct
11
Sunday

Hampton Court Palace Half Marathon

Half Marathon
Oct
24
Saturday

Lee Valley Velo Park Half Marathon

5 km 10 km 10 mi Half Marathon
November 2026
Nov
8
Sunday

Windsor Trail Run Half Marathon

Trail Run 10 km Half Marathon
Nov
8
Sunday

Run Dorney Lake Half Marathon

5 km 10 km Half Marathon
Nov
22
Sunday

Wimbledon Half Marathon

10 km Half Marathon
Nov
29
Sunday

RunThrough - Finsbury Park

5 km 10 km Half Marathon
December 2026
Dec
12
Saturday

Run Dorney Lake Half Marathon

5 km 10 km Half Marathon
Dec
13
Sunday

Crystal Palace Half Marathon

5 km 10 km Half Marathon
Dec
19
Saturday

Lee Valley Velo Park Half Marathon

5 km 10 km 10 mi Half Marathon
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