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Half Marathon Calendar near Watford 2025-2026

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Monthly updates for Watford

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Explore the top half marathons near Watford for 2025-2026! We've gathered 217 exciting races in the area. Check out our detailed list below to find your next local race.

March 2026
Mar
29
Su

Running Tribe Races

Trail Run 7 km 10 km ... 30 mi 40 mi
April 2026
Apr
2
Th

Saturn Running - Staines-upon-Thames

3 km 5 km ... Marathon 50 km
Apr
2
Th

Saturn 7 Hour Time Challenge - Staines-upon-Thames

3 km 7 km ... Marathon 50 km
Apr
2
Th

Saturn Running - Egham

Trail Run 3 km 5 km ... 50 km 7 hr
Apr
3-4
Fr - Sa

The Enigma Easter Series

Half Marathon Marathon
Apr
3
Fr

Victoria Park Half Marathon

5 km 10 km Half Marathon
Apr
3
Fr

Saturn 7 Hour Time Challenge - Wraysbury

Trail Run 3 km 7 km ... Marathon 50 km
Apr
4
Sa

Run Dorney Lake Marathon

5 km 10 km Half Marathon
Apr
4
Sa

RunThrough - Battersea Park

10 km Half Marathon
Apr
5
Su

Putney & Fulham Half Marathon

Half Marathon
Apr
5
Su

Wimbledon Half Marathon

10 km Half Marathon
Apr
5
Su

Phoenix Running - Walton-on-Thames

Trail Run 5 km 10 km Half Marathon Marathon
Apr
6
Mo

Stevenage Spring Half Marathon

10 km Half Marathon
Apr
11
Sa

Henley River Half Marathon

Trail Run 10 km Half Marathon
Apr
11
Sa

Saturn Running - Staines-upon-Thames

3 km 5 km ... Marathon 50 km
Apr
12
Su

London Landmarks Half Marathon

Half Marathon
Apr
12
Su

Richmond Park Half Marathon

Half Marathon
Apr
17
Fr

Saturn Running - Midweek Chasing Numbers

3 km 5 km ... Marathon 50 km
Apr
17
Fr

Phoenix Fridays

Backyard Ultra 5 km 10 km Half Marathon Marathon
Apr
18
Sa

Saturn Running - Staines-upon-Thames

3 km 5 km ... Marathon 50 km