watfordharriers.org.uk

ATW Watford Half Marathon & 10K

Name: ATW Watford Half Marathon & 10K
Start: 2026-02-01
End: 2026-02-01
Location: Watford

location_city Watford

flag United Kingdom

calendar_today 01 Feb, 2026

directions_run Running

language Official Website

About the Event

Kick off your racing year with a vibrant and historic community event in the heart of Hertfordshire. The Watford Half Marathon & 10K, celebrating over 40 years of running tradition, returns on Sunday, 1 February 2026 with a thrilling route starting in the picturesque Cassiobury Park. Choose between the fast, canal-side 10K or the challenging half marathon on fully closed rural lanes, complete with pacers, live music, and the chance to win a £2000 cash spot prize. As the official Hertfordshire Senior Half Marathon Championships, it attracts a competitive field while maintaining a fantastically festive atmosphere for runners of all levels, including a family fun run. Experience the electric energy of a Racecheck Gold Award-winning event, where professional organization meets genuine community spirit, making it the perfect season opener or London Marathon training benchmark. Secure your spot for a brilliantly organized day of personal achievement and celebration.

Races Offered

10 km

Feb 01, 2026

straighten

Distance — 10K

terrain

Type — Road running

timer

10:00

Half Marathon

Feb 01, 2026

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Distance — 21.1K

terrain

Type — Road running

timer

10:00

Weather Overview

These values represent the 3-year monthly averages for February in Watford.

Temp (°C)

Feels Like (°C)

thermostat 3.7° / 10.0°

wb_sunny -0.8° / 5.5°

Wind (km/h)

Humidity (%)

air 17.1 /

water_drop 84.6%