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Half Marathon Calendar near Watford 2025-2026

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Explore the top half marathons near Watford for 2025-2026! We've gathered 186 exciting races in the area. Check out our detailed list below to find your next local race.

July 2026
Jul
26
Sunday

Wimbledon Half Marathon

10 km Half Marathon
August 2026
Aug
1-2
Sa - Su

Wind in the Pillows

Half Marathon Marathon
Aug
2
Sunday

Vanguard Way Marathon

Trail Run 13 mi 26 mi
Aug
7
Friday

Saturn 7 Hour Time Challenge - Wraysbury

Trail Run 3 km 7 km ... Marathon 50 km
Aug
8
Saturday

Run Dorney Lake Half Marathon

5 km 10 km Half Marathon
Aug
15
Saturday

Lee Valley Velo Park Half Marathon

5 km 10 km 10 mi Half Marathon
Aug
29
Saturday

Lee Valley Velo Park Half Marathon

5 km 10 km 10 mi Half Marathon
Aug
30
Sunday

Windsor Trail Run Half Marathon

Trail Run 10 km Half Marathon
September 2026
Sep
5
Saturday

Henley River Half Marathon

Trail Run 10 km Half Marathon
Sep
6
Sunday

Wimbledon Half Marathon

10 km Half Marathon
Sep
13
Sunday

Bacchus Wine Half Marathon

10 km Half 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
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