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Half Marathon Calendar near Henley-on-Thames 2025-2026

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Explore the top half marathons near Henley-on-Thames for 2025-2026! We've gathered 115 exciting races in the area. Check out our detailed list below to find your next local race.

March 2026
Mar
22
Sunday

Windsor Trail Run

Trail Run 10 km 21 km
Mar
28
Saturday

Run the Wild Half Marathon - Spring Edition

Trail Run 21 km
Mar
29
Sunday

Fleet Half Marathon

21 km
April 2026
Apr
2
Thursday

Saturn Running - Staines-upon-Thames

3 km 7 km ... 42 km 50 km
Apr
2
Thursday

Saturn 7 Hour Time Challenge - Staines-upon-Thames

3 km 7 km ... 42 km 50 km
Apr
2
Thursday

Saturn Running - Englefield Green

3 km 7 km ... 42 km 50 km
Apr
3
Friday

Saturn 7 Hour Time Challenge - Wraysbury

Trail Run 3 km 7 km ... 42 km 50 km
Apr
4
Saturday

Run Dorney Lake Half Marathon

5 km 10 km 21 km
Apr
11
Saturday

Henley River Half Marathon

Trail Run 10 km 21 km
Apr
11
Saturday

Saturn 7 Hour Time Challenge - Staines-upon-Thames

3 km 7 km ... 42 km 50 km
Apr
11
Saturday

Saturn Running - Staines-upon-Thames

3 km 7 km ... 42 km 50 km
May 2026
May
2
Saturday

Run Dorney Lake Half Marathon

5 km 10 km 21 km
May
16-17
Sa - Su

London West Spartan Trifecta Weekend

Obstacle Run 5 km 10 km 21 km
June 2026
Jun
3
Wednesday

Surrey Hills Half Marathon

Trail Run 13 mi
Jun
6
Saturday

Run Dorney Lake Half Marathon

5 km 10 km 21 km
Jun
7
Sunday

Weybridge Half Marathon

5 km 10 km 21 km
Jun
14
Sunday

ATW St Albans Half Marathon

2 mi 5 km 10 km 21 km
Jun
14
Sunday

Wendover Woods Half Marathon

Trail Run 10 km 21 km
Jun
21
Sunday

Dunstable Downs Half Marathon

Trail Run 21 km
Jun
28
Sunday

Marlow Trail Run

Trail Run 5 km 10 km 21 km
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