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Running Calendar South East (England) 2025-2026

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Explore the best running races in South East (England) for 2025-2026! Our updated list features 458 exciting races across the region. Find your next race in South East (England) below and join the running community at these great events!

March 2026
Mar
22
Sunday

Reading Half Marathon

13 mi
Mar
22
Sunday

Hastings Half Marathon

13 mi
Mar
29
Sunday

Fleet Half Marathon

13 mi
April 2026
Apr
2
Thursday

Saturn Running - Staines-upon-Thames

5 km 7 km ... 26 mi 50 km
Apr
3-4
Fr - Sa

The Enigma Easter Series

13 mi 50 km
Apr
3
Friday

Folkestone 10 Mile Race

10 mi
Apr
4
Saturday

Testway Ultra

Trail Run 40 mi 50 mi
Apr
5
Sunday

Springtide 50k

Trail Run 13 mi 50 km
Apr
5
Sunday

Easter 5km - Milton Keynes

5 km
Apr
6
Monday

Mortimer 10km

Trail Run 10 km
Apr
11
Saturday

50 Mile Grand Slam

Trail Run 50 mi
Apr
11
Saturday

Centurion South Downs Way 50

Trail Run 50 mi
Apr
11
Saturday

Henley River Half Marathon

Trail Run 10 km 13 mi
Apr
11-12
Sa - Su

Brighton Marathon Weekend

10 km 26 mi
Apr
18
Saturday

Windsor 50 Ultra Challenge

Trail Run 10 km 25 km 50 km
Apr
18
Saturday

Chiltern Ridge Classic 50k

Trail Run 50 km
Apr
18
Saturday

Spring Trail Series by Ultra X

Trail Run 12 km 25 km ... 50 mi 110 km
Apr
19
Sunday

Southampton Fast Twitch

Triathlon
Apr
25
Saturday

The Drop - Sevenoaks

10 mi 15 mi
Apr
26
Sunday

The Ale Trail

Trail Run 15 mi
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