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Marathon Calendar near Watford 2025-2026

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Explore the top marathons near Watford for 2025-2026! We've gathered 64 exciting races in the area. Check out our detailed list below to find your next local race.

March 2026
Mar
14
Saturday

Saturn 7 Hour Time Challenge - Staines-upon-Thames

3 km 7 km ... Marathon 50 km
Mar
21
Saturday

ZigZag - Moo-rathon, Calf and Hen K at the Farm

Trail Run 10 km Half Marathon Marathon
Mar
21
Saturday

Saturn 7 Hour Time Challenge - Staines-upon-Thames

3 km 7 km ... Marathon 50 km
April 2026
Apr
2
Thursday

Saturn Running - Staines-upon-Thames

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

Saturn 7 Hour Time Challenge - Staines-upon-Thames

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

Saturn Running - Englefield Green

3 km 7 km ... Marathon 50 km
Apr
3-4
Fr - Sa

The Enigma Easter Series

Half Marathon Marathon
Apr
3
Friday

Saturn 7 Hour Time Challenge - Wraysbury

Trail Run 3 km 7 km ... Marathon 50 km
Apr
11
Saturday

Saturn 7 Hour Time Challenge - Staines-upon-Thames

3 km 7 km ... Marathon 50 km
Apr
11
Saturday

Saturn Running - Staines-upon-Thames

3 km 7 km ... Marathon 50 km
Apr
17
Friday

Saturn Running - Midweek Medal Madness Run

3 km 7 km ... Marathon 50 km
Apr
18
Saturday

Saturn Running - Staines-upon-Thames

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

TCS London Marathon

Marathon
May 2026
May
1
Friday

Saturn Running - Midweek Chasing Numbers

3 km 4 mi ... Marathon 50 km
May
1
Friday

Saturn 7 Hour Time Challenge - Wraysbury

Trail Run 3 km 7 km ... Marathon 50 km
May
3
Sunday

MK Marathon Weekend

5 km Half Marathon Marathon
May
4
Monday

Saturn Running - Staines-upon-Thames

3 km 7 km ... Marathon 50 km
May
16
Saturday

Saturn Running - Staines-upon-Thames

3 km 7 km ... Marathon 50 km
May
29
Friday

Saturn Running - Midweek Medal Madness Run

3 km 5 km ... Marathon 50 km
May
31
Sunday

Circuit du Sore Legs

Backyard Ultra 5 km 10 km ... 50 km 6 hr
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