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

July 2026
Jul
24
Fr

Saturn Running - Midweek Chasing Numbers
3 km 5 km ... 50 km 7 hr
August 2026
Aug
1-2
Sa - Su

Wind in the Pillows
Half Marathon Marathon
Aug
7
Fr

Saturn 7 Hour Time Challenge - Wraysbury
Trail Run 3 km 7 km ... Marathon 50 km
Aug
7
Fr

Saturn Running - Midweek Chasing Numbers
3 km 5 km ... 50 km 7 hr
Aug
8
Sa

Phoenix Running - Westhumble
Trail Run 5 km 10 km Half Marathon Marathon
Aug
9
Su

Saturn Running - Staines-upon-Thames
3 km 5 km ... Marathon 50 km
Aug
9
Su

Saturn 7 Hour Time Challenge - Staines-upon-Thames
3 km 3 mi ... 50 km 7 hr
Aug
14
Fr

Saturn 7 Hour Time Challenge - Wraysbury
Trail Run 3 km 7 km ... 49 km 50 km
Aug
14
Fr

Saturn Running - Midweek Chasing Numbers
3 km 5 km ... 50 km 7 hr
Aug
23
Su

The Big Pilgrimage
Trail Run 15 mi Marathon
Aug
30
Su

Woldingham Marathon
Trail Run 13 mi 26 mi
September 2026
Sep
5
Sa

Phoenix - Summer Marathon & Half Marathon
Half Marathon Marathon
Sep
5
Sa

Phoenix Running - Walton-on-Thames
Trail Run Half Marathon Marathon
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

New Forest Marathon
5 km 10 km Half Marathon Marathon
Sep
20
Su

BigSky Trails (AIR)
Trail Run 18 mi Marathon 50 km
October 2026
Oct
4
Su

Wild Run - Cotswolds
Trail Run 10 km Half Marathon Marathon
Oct
11
Su

Running GP at Goodwood Motor Circuit Races & Duathlons
5 km 10 km ... Marathon 50 km
Oct
17-18
Sa - Su

Top Gun Run
Half Marathon Marathon