South East (England) close

Half Marathon Calendar South East (England) 2025-2026

Header image

Explore the best half marathons in South East (England) for 2025-2026! Our updated list features 172 exciting races across the region. Find your next race in South East (England) below and join the running community at these great events!

January 2026
Jan
10
Saturday

Saturn Running - Staines-upon-Thames

3 km 7 km ... 42 km 50 km
Jan
18
Sunday

Run Dorney Lake Half Marathon

5 km 10 km 21 km
Jan
24
Saturday

Saturn Running - Staines-upon-Thames

3 km 7 km ... 42 km 50 km
Jan
25
Sunday

Moors Valley Wildwood Half Marathon Trail

Trail Run 10 km 21 km
Jan
25
Sunday

Windsor Trail Run

Trail Run 10 km 21 km
February 2026
Feb
6
Friday

Saturn 7 Hour Time Challenge - Staines-upon-Thames

3 km 7 km ... 50 km 7 hr
Feb
7
Saturday

Saturn Running - Staines-upon-Thames

3 km 7 km ... 42 km 50 km
Feb
7
Saturday

Run Dorney Lake Half Marathon

5 km 10 km 21 km
Feb
8
Sunday

Farnborough Winter Half Marathon

21 km
Feb
14-15
Sa - Su

Xterra Matterley

Trail Run 7 km 14 km ... 21 km 29 km
Feb
14
Saturday

Saturn 7 Hour Time Challenge - Staines-upon-Thames

3 km 7 km ... 42 km 50 km
Feb
14
Saturday

Saturn Running - Staines-upon-Thames

3 km 7 km ... 42 km 50 km
Feb
21
Saturday

Saturn 7 Hour Time Challenge - Staines-upon-Thames

3 km 7 km ... 42 km 50 km
Feb
21
Saturday

Saturn Running - Staines-upon-Thames

3 km 7 km ... 42 km 50 km
Feb
21
Saturday

Magna Carta

10 km 21 km 42 km
Feb
22
Sunday

Dartford Half Marathon

21 km
Feb
22
Sunday

Wokingham Half

21 km
Feb
22
Sunday

The Milton Keynes Half Marathon Winter Warmer Run

5 km 10 km 21 km
Feb
28
Saturday

Saturn Running - Staines-upon-Thames

3 km 4 mi ... 49 km 50 km
March 2026
Mar
1
Sunday

Brighton Half Marathon

13 mi
Articles
Top 10 Marathons in the Netherlands — The Ultimate Dutch Marathon Bucket List: 10 Unmissable Races
The Beauty of the Easy Run — Why slowing down might be the smartest thing you do for your running
Mizuno Wave Rider 28: Elevating the Legacy of a Running Icon
Garmin Forerunner Review: Garmin Forerunner Series