Welwyn Half Marathon

The Welwyn Half Marathon is organised by ATW

Sun 20th March 2016, start time 09:00 am

The organisers of the Hillingdon Half, Hatfield 5, Ickenham 5 and Love Welwyn GC 10K are pleased to announce that the Welwyn Half Marathon will return in 2016!

There will also be the Welwyn Micro Marathon (400m) for kids which will be free!

Online entries: Pay by major credit/debit cards

Race run under UKA rules. Permit TBC




Welwyn Garden City has fantastic sporting facilities and is surrounded by some great sporting clubs and associations. We are excited to bring this mass participation event to the area for another year. The race will be organised by Active Training World under UKA rules and will be hosted at Gosling Sports Park, Welwyn Garden City.

The route for the race is a mixture of a residential setting and a rural section along the Cole Green Way cycle path. The race will also start and finish on Gosling Running Track.

The route is best described as undulating but quick with many personal bests reported in 2015. It will be an ideal preparation race for London or other spring marathons.

DID YOU KNOW: The world half marathon record used to be held on a half marathon route in Welwyn Garden City! Tony Simmons 1:02:37 on June 24 1978 

Before the race (8:40am) we will have a free kids event called the Welwyn Micro Marathon. This will be a single lap of the track and kids of any age can take part. They can run, be pushed in a buggy or carried around the track and all finishers will get a certificate. You don't have to enter in advance - just turn up on the morning.


Event Supporters

We are looking for a title sponsor for the Welwyn Half Marathon 2016. Get in touch at events@activetrainingworld.co.uk if you are interested

The event will also be supported by Gosling Sports Park, Herts Sport & Wellbeing Foundation, Welwyn Hatfield Borough Council, Runnersworld in Marshalwick, The Year Of Sport

GlucoGosling Sports ParkWelwyn HatfieldHerts SportsBest of Welwyn Hatfield


Social Media

We will be providing regular race updates on the Welwyn Half social media. Click below to join the conversations


 Race numbers will be collected on the day of the race. Please arrive in good time to collect your race number and timing chip. The registration desk will close at 08:30am

Event Name Welwyn Half Marathon and Welwyn Micro Marathon
Event Distance 13.1 Miles, Micro Marathon is 400m
Course Profile  The race will incorporate 1 lap of pavements and cycle paths with a running track  start and finish.
Relay Entries No
Water Stations Water will be provided at regular intervals on the course
Distance Markers Every Mile
Traffic Free? No
Minimum Age 17+
Organiser ActiveTrainingWorld
Event Website www.welwynhalf.co.uk 
Email events@activetrainingworld.co.uk
ATW Fee All fees are included in the entry price

  • Event T Shirt, medal and gift to all finishers
  • Overall 1st, 2nd and 3rd man and woman prizes of £150, £100 & £50 respectively.
  • Overall 1st, 2nd and 3rd man and woman trophies
  • Age group trophies for M40+, M50+, M60+, M70+, W40+, W50+, W60+,W70+
  • 1st Male team shield (4 to score) plus £20 per scoring team member
  • 1st Womens team shield (3 to score) plus £20 per scoring team member



The route for the race is a mixture of a residential setting and a rural section along the Cole Green Way cycle path. The race will also start and finish on Gosling Running Track.

The running track start and finish will be a great spectator location.

The course will be accurately measured and certified by the Association of Course Measurers in the coming weeks.

A map of the course is available here


Yelling Performance have written 3 training plans to help you train for this event:
Other Race Information


Running Numbers

Please wear your number pinned to the front of your vest.


Very limited parking is available at the sports centre but additional parking is available at Stanborough Lakes (pay and display)


Come changed and ready to run if possible but changing facilities are available at the sports centre.


Toilets will be provided for the event.


All refund and transfer requests will need to be requested before 20th Feb 2016 



***IMPORTANT NOTICE! Before you enter the Welwyn Half Marathon please read the information on the Runners Medical Resource website and asses whether you are or will be able to complete 13.1 miles safely and within the race time limit of 3 hours. Please only enter if you can fulfil those requirements.***

Athlete Declaration:

I hereby declare that (1) I am 17 or over on 12 April 2016 (2) I am an amateur according to the eligibility rule of UK Athletics, (3) I am medically fit to run and (4)  I will do so at my own risk and agree not to hold the organisers responsible in any way for any injury or loss resulting from my participation in the event (5)

In the unfortunate cancellation of the event through circumstance beyond the control of the race organisers.  I understand, and accept, the rules and terms of the entry including that there will be no refund of race fees.

By entering this event, the athlete indicates acceptance of UKA rules

Location: Gosling Sports Park, Stanborough Road, Welwyn Garden City, Hertfordshire, AL8 6XE