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Half Marathon Calendar near St. James's 2025-2026

Monthly updates for St. James's

Get new running races (and updates) in your inbox every month.

Explore the top half marathons near St. James's for 2025-2026! We've gathered 197 exciting races in the area. Check out our detailed list below to find your next local race.

September 2026
Sep
12
Sa

The Shere 42k Multi Terrain Event

Trail Run 10 km Half Marathon Marathon
Sep
13
Su

Bacchus Wine Half Marathon

10 km Half Marathon
Sep
13
Su

Richmond Park Half Marathon

Trail Run 13 mi
Sep
13
Su

Basildon Half Marathon

Half Marathon
Sep
20
Su

Bradenham Blast

Trail Run 5 km 10 km Half Marathon
Sep
20
Su

Run Reigate Half Marathon

5 km 10 km Half Marathon
Sep
26
Sa

Run Dorney Lake Marathon

5 km 10 km Half Marathon Marathon
Sep
26
Sa

RunThrough - Battersea Park

10 km Half Marathon
Sep
27
Su

Windsor Half Marathon

Half Marathon
Sep
27
Su

Ealing Half Marathon

13 mi
October 2026
Oct
3
Sa

Run Dorney Lake Marathon

5 km 10 km Half Marathon
Oct
4
Su

Welwyn Half Marathon

10 km 13 mi
Oct
4
Su

Kingston Half Marathon

Half Marathon
Oct
4
Su

Thames Meander Autumn

Trail Run 10 km Half Marathon Marathon
Oct
10
Sa

Beat Box Hill 50k

Trail Run Half Marathon 31 km 50 km
Oct
11
Su

Hampton Court Palace Half Marathon

Half Marathon
Oct
11
Su

Royal Parks Half Marathon

Half Marathon
Oct
24
Sa

Lee Valley Velo Park Half Marathon

5 km 10 km 10 mi Half Marathon
Oct
24
Sa

RunThrough - Battersea Park

Half Marathon Marathon
Oct
25
Su

River Thames Half Marathon

Half Marathon