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

September 2026
Sep
12
Sa

Bewl Water Autumn
Trail Run 10 km 13 mi 27 mi 50 km
Sep
12-13
Sa - Su

The Flying Scotsman
Half Marathon Marathon
Sep
12
Sa

The Shere 42k Multi Terrain Event
Trail Run 10 km Half Marathon Marathon
Sep
13
Su

The Farnham Pilgrim Marathon
Trail Run Half Marathon
Sep
13
Su

New Forest Marathon
5 km 10 km Half Marathon Marathon
Sep
13
Su

Bacchus Wine Half Marathon
10 km Half Marathon
Sep
20
Su

Bradenham Blast
Trail Run 5 km 10 km Half Marathon
Sep
20
Su

Run Reigate Half Marathon
5 km 10 km Half Marathon
Sep
20
Su

Winchester Half Marathon
13 mi
Sep
26
Sa

Run Dorney Lake Half Marathon
5 km 10 km Half Marathon
Sep
26-27
Sa - Su

London South East Spartan Weekend
Obstacle Run 5 km 10 km Half Marathon 50 km
Sep
27
Su

Windsor Half Marathon
Half Marathon
Sep
27
Su

Folkestone Rotary Half Marathon
Half Marathon
October 2026
Oct
3
Sa

Run Dorney Lake Half Marathon
5 km 10 km Half Marathon
Oct
3
Sa

The Dark Downs
Trail Run Half Marathon 50 km
Oct
4
Su

Wild Run - Cotswolds
Trail Run 10 km Half Marathon Marathon
Oct
4
Su

Basingstoke Half Marathon
5 km 10 km Half Marathon
Oct
11
Su

Hampton Court Palace Half Marathon
Half Marathon
Oct
11
Su

Running GP at Goodwood Motor Circuit Races & Duathlons
5 km 10 km ... Marathon 50 km
Oct
11
Su

Oxford Half
Half Marathon