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Trail Running Calendar South East (England) 2025-2026

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Explore the best trail runs in South East (England) for 2025-2026! Our updated list features 189 exciting races across the region. Find your next race in South East (England) below and join the running community at these great events!

May 2026
May
3
Sunday

Rapid Relays

Trail Run 3 km
May
3
Sunday

Three Forts Challenge

Trail Run 5 mi 13 mi 27 mi
May
4
Monday

BigWayRound - Winchester

Trail Run 14 mi 19 mi 26 mi 50 km
May
9
Saturday

Chiltern Hills 100K

Trail Run 100 km
May
9
Saturday

Run to the Sea Brighton Ultramarathon

Trail Run 50 km
May
16
Saturday

Centurion North Downs Way 50

Trail Run 50 mi
May
17
Sunday

Reigate Priory Park 10K Charity Fun Run

Trail Run 10 km
June 2026
Jun
28
Sunday

Marlow Trail Run

Trail Run 5 km 10 km 13 mi
September 2026
Sep
5
Saturday

Henley River Half Marathon

Trail Run 10 km 13 mi
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