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Half Marathon Calendar near Harwell 2026-2027

Monthly updates for Harwell

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Explore the top half marathons near Harwell for 2026-2027! We've gathered 34 exciting races in the area. Check out our detailed list below to find your next local race.

October 2026
Oct
4
Su

Greenham Common Half Marathon

Trail Run 10 km Half Marathon
Oct
11
Su

Oxford Half

Half Marathon
Oct
18
Su

Henley Half Marathon

5 km 10 km 13 mi
Oct
25
Su

Andover Half Marathon

12 km 13 mi
Oct
25
Su

Maidenhead Half Marathon

13 mi
Oct
25
Su

Windsor Dorney Lakeside 10k

10 km Half Marathon
November 2026
Nov
1
Su

Wendover Woods Marathon

Trail Run 10 km Half Marathon Marathon
Nov
1
Su

Marlow Half Marathon

10 km 7 mi 13 mi
Nov
29
Su

Mapledurham Half Marathon

Trail Run 10 km 10 mi Half Marathon
December 2026
Dec
2
We

Hughenden Valley Half Marathon

Trail Run Half Marathon
February 2027
Feb
21
Su

Wokingham Half

Half Marathon
March 2027
Mar
21
Su

Reading Half Marathon

Half Marathon
April 2027
Apr
10
Sa

Henley River Half Marathon

Trail Run 10 km Half Marathon
September 2027
Sep
4
Sa

Henley River Half Marathon

Trail Run 10 km Half Marathon
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