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Half Marathon Calendar London 2025-2026

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Explore the best half marathons in London for 2025-2026! Our updated list features 45 exciting races across the region. Find your next race in London below and join the running community at these great events!

August 2025
Aug
9
Saturday

Thames Meander Summer

Trail Run 10 km 21 km 42 km
Aug
10
Sunday

Richmond Park Half Marathon

21 km
Aug
17
Sunday

Fix Events - Richmond Park Half Marathon

5 km 10 km 13 mi
Aug
23
Saturday

RunThrough - Lee Valley VeloPark

5 km 10 km 10 mi 21 km
September 2025
Sep
7
Sunday

RunUk - Wimbledon Half Marathon

10 km 21 km
Sep
7
Sunday

The Big Half - London

21 km
Sep
7
Sunday

Fix Events - Richmond Park Half Marathon

5 km 10 km 13 mi
Sep
21
Sunday

Richmond Park Half Marathon

21 km
Sep
28
Sunday

Richmond Park Half Marathon

Trail Run 21 km
Sep
28
Sunday

Ealing Half Marathon

21 km
October 2025
Oct
4
Saturday

Victoria Park Half Marathon

5 km 10 km 21 km
Oct
5
Sunday

Kingston Half Marathon

21 km
Oct
5
Sunday

Thames Meander Autumn

Trail Run 10 km 21 km 42 km
Oct
12
Sunday

Royal Parks Half Marathon

13 mi
Oct
12
Sunday

Richmond Park Half Marathon

21 km
Oct
12
Sunday

Richmond Autumn Riverside 10k and Half Marathon

10 km 13 mi
Oct
18
Saturday

RunThrough - Battersea Park

21 km 42 km
Oct
19
Sunday

Fix Events - Richmond Park Half Marathon

5 km 10 km 13 mi
Oct
25
Saturday

RunThrough - Lee Valley VeloPark

5 km 10 km 10 mi 21 km
November 2025
Nov
2
Sunday

RunUk - Richmond Half Marathon

21 km
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