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

August 2025
Aug
9
Saturday

Saturn Running - Staines-upon-Thames

3 km 7 km ... 42 km 50 km
Aug
9
Saturday

Saturn 7 Hour Time Challenge

3 km 7 km ... 26 mi 50 km
Aug
9
Saturday

Run Dorney Lake Half Marathon

5 km 10 km 21 km 42 km
Aug
17
Sunday

Saturn Running - Staines-upon-Thames

3 km 7 km ... 42 km 50 km
Aug
17
Sunday

The Big Pilgrimage

Trail Run 15 mi 26 mi
Aug
17
Sunday

Saturn 7 Hour Time Challenge

3 km 7 km ... 26 mi 50 km
Aug
24
Sunday

Woldingham Marathon

Trail Run 21 km 42 km
September 2025
Sep
6
Saturday

Andover Trail Marathon

Trail Run 13 mi 26 mi
Sep
6
Saturday

The Shere 42k Multi Terrain Event

Trail Run 10 km 21 km 42 km
Sep
7
Sunday

The Sufferings

Trail Run 21 km 42 km 39 mi
Sep
7
Sunday

The Farnham Pilgrim Marathon

Trail Run 42 km
Sep
7
Sunday

Julie Rose Marathon

10 km 21 km 42 km
Sep
12
Friday

Saturn 7 Hour Time Challenge

3 km 7 km ... 26 mi 50 km
Sep
13
Saturday

Bewl Water Autumn

Trail Run 10 km 21 km 42 km 50 km
Sep
13-14
Sa - Su

Coronation Scot Railway Run

21 km 42 km
Sep
14
Sunday

New Forest Marathon

5 km 10 km 21 km 42 km
Sep
14
Sunday

Midnight Half, Full and Ultra Marathon

21 km 42 km
Sep
21
Sunday

BigSky Trails (AIR)

Trail Run 18 mi 26 mi
Sep
21
Sunday

Saturn Running - Staines-upon-Thames

3 km 7 km ... 42 km 50 km
Sep
21
Sunday

Saturn 7 Hour Time Challenge

3 km 7 km ... 26 mi 50 km
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