Run Harwell

We're very excited to be working with MST Events and Harwell Campus to bring this event back to the calendar yet again


Half Marathon • 5 KMs • Kids Mini-Mile


You missed out!

9.15am - Kids Mini-Mile starts
10am - Half Marathon start
10:10am - 5km start

Supporting Harwell based charity, BE FREE YC, this event will give opportunities to runners at all levels of experience and lend support to a local charity

All race distances will start from within the site of Harwell Campus and the Half Marathon will be a mixed terrain route with some gentle undulations along footpaths, bridleways and tracks meandering up onto the Ridgeway National Path from where you can enjoy stunning views of the rolling Oxfordshire countryside before returning to the Campus for the finish.

The 5Kms and Kids Mini-Mile will take in some of the Campus highlights including the Diamond Light Source. For anyone looking for a fast and flat race to achieve a new personal best – this is the one for you!

Quick Reference


Kids Mini-Mile
Half Marathon

Date & Time: 

Sunday 17 July 2022
Kids Mini-mile: 9.150am
Half Marathon: 10am
5km: 10.10am


Harwell Campus, Didcot,  OX11 0GD


Ample parking onsite - suggested donation of £2/car to support Be Free YC


Kids Mini-Mile: £10
Half Marathon: £30
5km: £18
Prices exclude processing fee

Entry Deadline:

Online entry closes at 8am, 15.07.22 (if not full prior)

Rules of Participation:

Minimum competitor age:
Kids Mini-Mile - 4-12 years 
5km - 12 years as of race day
Half Marathon - 16 years as of race day

No headphones to be worn during the event except bone conducting ones

No dogs to accompany runners


Available immediately as you cross the finish line here

Contact us:

07872 805883

Email us:


Kids Mini-Mile

Half Marathon





Fantastic course around the Harwell Campus       

A scenic half marathon taking in parts of the Ridgeway National Path starting & finishing at Harwell Campus

Flat, fast course within the grounds of Harwell Campus

  • Chip Timed
  • For those age 4 - 12
  • Medal for every finisher
  • Chip Timed
  • Minimum age 16
  • Medal & t-shirt for every finisher or option to "Dedicate a Tree"
  • Prizes for category winners
  • Chip timed
  • Minimum age 12
  • Medal & t-shirt for every finisher or option to "Dedicate a Tree" 
  • Prizes for category winners
  • course map

  • volunteering

  • terms and conditions

  • photos

  • results

  • event records

Find us here

Our Partners/Sponsors

A 2019 runner

My favourite half marathon

I have done many half marathons over the years and this is definitely my favourite one!!! It ticks all the boxes. I couldn’t fault it, the marshals were super, it was well organised, a beautiful route and so, so friendly. The directions and parking were perfect too.