Welwyn Half Marathon

OCT
4
2026
An autumn running event at Gosling Sports Park with a half marathon and a multi terrain 10k that start and finish on the 400m athletics track. The course uses the traffic free Cole Green Way and includes a free children's 400m fun run.
Half Marathon 10 kilometers

Always double-check with the organizer's website! This page may contain affiliate links.

ATW Welwyn Half Marathon & 10k

The event takes place in autumn at Gosling Sports Park in Welwyn Garden City, Hertfordshire. It offers road and off road sections and starts and finishes on the 400m athletics track at the stadium.

  • Half marathon
  • 10k

The half marathon heads out of the stadium through the outskirts of Welwyn and follows the Cole Green Way, a disused railway line converted to a traffic free path. The route includes a short loop before rejoining the Cole Green Way for the return and finishes with a lap of the track. The 10k is multi terrain, begins alongside the half marathon, shares the same opening 5 km, then follows its own loop back to the stadium.

A free 400m fun run for children takes place shortly before the main event; entry on the day is available and parents may join. The day includes a warm up led by personal trainers and a professional commentator at the finish. Food and drink are available from caterers for spectators.

The event is licensed by UK Athletics and chip timed by Event Chip Timing. There is a three hour cut off after which marshals and signage are not available. Finishers receive a custom medal, free professional race photos and refreshments. The event supports Alzheimer’s Research UK and offers donation and fundraising options at checkout. Limited paid parking is available at the venue with additional parking in Welwyn town centre. Entries may be transferred to a future ATW event up to 48 hours before the event; refunds and transfers to another person are not offered. Visit the organization's website for the most recent information.

Half Marathon
Half Marathon
10 km
10k
Add Event
Help us complete the calendar!
  • Distance is at least 5 km
  • Event has a website or Facebook page
Website
Optional: Please provide your e-mail address if we may contact you.
Report a change
We will only update the data if the information is also on the website.