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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 142 exciting races across the region. Find your next race in South East (England) below and join the running community at these great events!

April 2025
Apr
26
Saturday

Magna Carta Spring

Trail Run 10 km 13 mi 26 mi
Apr
27
Sunday

Rathfinny Run

Trail Run 10 km 21 km
Apr
27
Sunday

Surrey Hills Half Marathon

Trail Run 13 mi
May 2025
May
2
Friday

Saturn Running - Egham

Trail Run 5 km 7 km ... 26 mi 50 km
May
4
Sunday

Three Forts Challenge

Trail Run 5 mi 13 mi 27 mi
May
4-5
Su - Mo

MK Marathon Weekend

5 km 13 mi 26 mi
May
4
Sunday

Rapid Relays

Trail Run 13 mi 26 mi
May
5
Monday

Saturn Running - Staines-upon-Thames

5 km 7 km ... 26 mi 50 km
May
10
Saturday

Bewl Water Spring

Trail Run 10 km 13 mi 26 mi
May
10
Saturday

The All Nations Half Marathon Run

5 km 10 km 13 mi
May
11
Sunday

Buckingham Half Marathon

13 mi
May
11
Sunday

Saturn 7 Hour Time Challenge

5 km 7 km ... 26 mi 50 km
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
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
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