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Half Marathon calendar South East (England) 2025-2026

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Explore the best half marathons in South East (England) for 2025-2026! Our updated list features 163 exciting races across the region. Find your next race in South East (England) below and join the running community at these great events!

May 2025
May
17-18
Sa - Su

London West Spartan Trifecta Weekend

Obstacle Run 5 km 10 km 21 km
May
17-18
Sa - Su

Goring Gap Trail

Trail Run 13 mi 26 mi 52 km 50 mi
May
18
Sunday

Pulborough Vineyards Run

Trail Run 5 km 7 km ... 20 km 13 mi
May
18
Sunday

The Ridge Off Roader

Trail Run 10 km 21 km
May
18
Sunday

Saturn Running - Staines-upon-Thames

5 km 4 mi ... 26 mi 50 km
May
18
Sunday

Saturn 7 Hour Time Challenge

5 km 13 mi 26 mi 50 km
May
24-25
Sa - Su

UK Ultra - South Downs Ultra

Trail Run 13 mi 20 mi ... 100 km 100 mi
May
25
Sunday

Seven Sisters Half Marathon

Trail Run 13 mi
May
25
Sunday

ATW Chiltern Half Marathon

Trail Run 10 km 13 mi
May
25
Sunday

Run Dorney Lake Half Marathon

5 km 10 km 13 mi
May
30
Friday

Saturn Running - Staines-upon-Thames

5 km 7 km ... 26 mi 50 km
May
30
Friday

Saturn 7 Hour Time Challenge

5 km 7 km ... 50 km 7 hr
June 2025
Jun
1
Sunday

Weybridge Half Marathon

5 km 10 km 13 mi
Jun
1
Sunday

Macknade

10 km 13 mi
Jun
3
Tuesday

Surrey Hills Half Marathon

Trail Run 13 mi
Jun
6
Friday

Saturn Running - Egham

Trail Run 5 km 7 km ... 42 km 50 km
Jun
6
Friday

Saturn 7 Hour Time Challenge

5 km 7 km ... 26 mi 50 km
Jun
7-8
Sa - Su

Enigma Show Me the Monet

13 mi 26 mi
Jun
7
Saturday

Magna Carta Summer

Trail Run 10 km 13 mi 26 mi
Jun
7
Saturday

Run Dorney Lake Half Marathon

5 km 10 km 13 mi
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