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Challenge Awards IconChallenge Awards Winner 2019

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Put both your strength and stamina to the test at the UK's Best 10K (Challenge Awards 2019). Great for those looking for a little something extra, the course takes place on the Mountain Bike Circuit from the London 2012 Olympic Games. Come for the finisher's medal or to release your inner Olympian.

Review summary

65 Reviews
  • Course
  • Organisation
  • Atmosphere


Dannie P
"Bit more organisation at start to get everyone lined up, but can’t fault the..."


Gary J
"Really great event, lots of supportive marshals, great location and a tough..."


Keith A S
"Fantastic Day, well organised, Marshalls were brilliant around the course,..."
See all reviews

How to enter the The Hadleigh Legacy 10k

  1. 10k

    Run 10km
    Sold out

The Hadleigh Legacy 10k route

This is a challenging but hugely enjoyable off-road 10k using some of the MTB course, footpaths and trails set within the grounds of Hadleigh Castle and which proved such a tough test for the Olympians in the summer of 2012.

The course will be two laps of 5km and runners can expect tough inclines and declines on grass fields and footpaths. There are also a couple of short sections with rocks and boulders, as used in the Olympic MTB races, to provide an extra challenge.

Event Details

What’s Included
  • Finisher's Medal
  • Finish Line Goodies
  • Refreshment Station
  • Aid Station
  • Chip timed event
Raceday Logistics


10:30: Race begins

Please ensure that you arrive at least 45 minutes before the start of the race in order to drop your bag and complete the registration process.


Spectators are more than welcome and they should get a good view of the runners, wherever they stand due to the looped nature of the course.


If you would like to volunteer, there are a variety of roles available from marshalling to helping with event set-up. Volunteers are offered free entry to a future Nice Work race and, in some cases, expenses are available. If interested, please contact: [email protected]

Frequently Asked Questions

How do I attach my timing chip?
Your timing chip is incorporated into your race number and should not be removed. Please place the race number on the front of your vest/shirt and not on your leg or back.
Can I leave my bag?
Yes, there is a bag drop available. However, runners are advised to bring as little baggage as possible.
Where can I find my results?
Results will be posted as soon as possible after the event on Nice Work's website. Please visit

Meet the organiser

We are a specialist race management company, organising more than 140 races across the UK each year. We offer everything from small community events to larger races organised on behalf of running clubs, charities, local authorities and private companies.



The Hadleigh Legacy 10k reviews (65)

4.9 out of 5 stars

  • Course
  • Organisation
  • Atmosphere
  • K

    Keith A S

    Did the 10k in 2020

    Fantastic Day, well organised, Marshalls were brilliant around the course, encouraging all the runners. Everyone involved in the organisation of the event, I thank each one of you. A special mention to the Gentleman who runs the Mountain Bike complex, a big thank you for fixing my chain. Sincerely Runner 57.
  • C

    Carrie S

    Did the 10k in 2020

    Most challenging 10k I've ever run, but well organised, fab marshals, plenty of hills and mud and a great sense of achievement.
  • J

    James H

    Did the 10k in 2020

    My first Xcountry event. Brutal course but amazing organisation and support from the volunteers. I will be back.
  • I

    Ian R

    Did the 10k in 2020

    4th year doing this event,and it doesn’t disappoint. A challenging course that has some serious elevation packed into it’s 3 mile lap .
  • L

    Lewis S

    Did the 10k in 2020

    Fantastically well organised event with lots of marshalls on a very well marked, and very challenging course. Would highly recommend.
  • Did the 10k in 2020

    Really great event, lots of supportive marshals, great location and a tough hilly course, will be back tor sure 👍😀🏃‍♂️💚
  • R

    Rob D

    Did the 10k in 2020

    What a brutally brilliant challenging friendly great marshalled course. If you want to yourself a target for a 10 k you cant pick a better one than the Hadleigh Legacy 10k
  • P

    Phil H

    Did the 10k in 2020

    A tough, but really interesting course (you never run in the same direction or gradient for very long!). Very well run, with great marshall support all the way round (and you need it!). My third, will be back again next year.
  • S


    Did the 10k in 2020

    A very well organised event, on a challenging course with great scenery! One for the diary every year!
  • Did the 10k in 2020

    Bit more organisation at start to get everyone lined up, but can’t fault the race itself. Course was challenging and fun.
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