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Marathon calendar South East (England) 2025-2026

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Explore the best marathons in South East (England) for 2025-2026! Our updated list features 87 exciting races across the region. Find your next race in South East (England) below and join the running community at these great events!

February 2026
Feb
5-8
Th - Su

Enigma Quadzilla

26 mi
Feb
22
Sunday

BigMud Trails (EARTH)

Trail Run 16 mi 26 mi
March 2026
Mar
7
Saturday

Endurancelife | Sussex

Trail Run 10 km 13 mi 26 mi 32 mi
Mar
9-15
Mo - Su

Enigma Week at the Knees

26 mi
Mar
21
Saturday

Winter's End - 50 Mile Ultra & Marathon

Trail Run 26 mi 50 mi
April 2026
Apr
2
Thursday

Saturn Running - Staines-upon-Thames

5 km 7 km ... 26 mi 50 km
May 2026
May
4
Monday

BigWayRound - Winchester

Trail Run 14 mi 19 mi 26 mi 50 km
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