Harrow close

Trail Running Calendar near Harrow 2025-2026

Header image

Explore the top trail runs near Harrow for 2025-2026! We've gathered 112 exciting races in the area. Check out our detailed list below to find your next local race.

September 2026
Sep
5
Saturday

Henley River Half Marathon

Trail Run 10 km Half Marathon
Sep
8
Tuesday

Silent Pool 10km

Trail Run 10 km
Sep
12-13
Sa - Su

Thames Path Ultra Challenge

Trail Run 10 km 22 km ... 72 km 100 km
Sep
13
Sunday

Richmond Park Half Marathon

Trail Run 13 mi
Sep
20
Sunday

Bradenham Blast

Trail Run 5 km 10 km Half Marathon
Sep
26
Saturday

Chiltern 50 Ultra Challenge

Trail Run 10 km 25 km 50 km
October 2026
Oct
3
Saturday

London Epping Forest 50 Km

Trail Run 50 km
Oct
3
Saturday

London Ecotrail 25 Km

Trail Run 25 km
Oct
10
Saturday

North Downs Way Ultra Run

Trail Run 30 mi
Oct
11
Sunday

Frieth Hilly 5km & 10km

Trail Run 5 km 10 km
November 2026
Nov
8
Sunday

Windsor Trail Run Half Marathon

Trail Run 10 km Half Marathon
December 2026
Dec
5
Saturday

Box Hill Vertical KM

Trail Run 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