Dunstable Downs Trail Half Marathon

Dunstable Downs Trail Half

The race will be back next year, we hope to see you there!

Hosted from the National Trust visitor centre at Dunstable Downs, our half marathon follows a stunning trail route around the Downs and out to Kensworth Quarry.

The route is fully marked and marshalled — all you have to do is turn up and run.


  • Race date


  • Event base

    National Trust - Dunstable Downs

  • Distance

    21.2km (13.1mi)

  • Elevation change


  • Cut-off

    3.5 hours

  • Aid stations

    1 (passed twice at 5.8km and 12.5km)

  • Field size

    150 runners

Race resources

GPX Route details

(If it downloads as an XML file, please rename the file to end with '.gpx')

You can also view and follow the route via the following platforms:

Quick links

Route details
Route/elevation maps
Aid stations
Entry details
Mandatory Kit
Getting there

Route details

Our fully marked half marathon route begins at the National Trust centre within Dunstable Downs.

The first quarter of the race takes runners on a short loop towards the Tree Cathedral, along to Bison Hill and back past the centre on some quality undulating trails with great view towards Ivinghoe Beacon.

Once past our aid station (5.8km), runners embark on a full loop of the Kensworth Quarry perimeter trail, providing some unusual views on wide undulating dirt paths.

Upon rejoining the Downs and passing the aid station again (12.5km) the runners complete an out and back to Five Knoles, where the biggest climb of the race is tackled.

The final section dips back onto the lower Downs trails to run what was the first 5km, now in reverse, all the way to the finish line.


09:00 Car park and registration opens
09:50 Registration closes
10:00 Race start
13:30 Finish line cut-off

Dunstable Downs Half route

Dunstable Downs Half route

Dunstable Downs Half route

Route map & elevation

Please view the resources section to view/download the GPS of the route.

Aid stations

You will find our aid station at both 5.8km and 12.5km on the route. This will be stocked with:

  • Water
  • Coke
  • Sweets
  • Mountain Fuel Energy gels

There will be limited numbers of paper cups, so please carry a bottle of soft cup if you plan to use the checkpoint.

Runaway Racing checkpoint

Entry details

Registration is £32 (or £30 to affiliated runners).

There will be 150 entries available. Once all places are sold out we will operate a waiting list.


We do not allow transfers or deferrals on this event.


Please view our withdrawals page

Kit list

There is no mandatory kit, however we recommend you carry the following whilst running:

  • Mobile phone
  • Access to the GPX route via your watch/phone (for backup)
  • Water or soft cup
  • A light jacket if the weather is bad!

If possible, please keep everything else in your car. We will have a small bag drop area for those that need to use it.


All runners will receive a unique finishers medal.

The top 3 male and female runners will receive a prize, along with the first V40 and V50 male and female finishers.

Race rules

To view a list of our race rules please click here.

Getting there

The address for the event base is: Dunstable Downs, Whipsnade Road, Dunstable, Bedfordshire, LU6 2GY.

If you are arriving by car, please park in the car parks provided by National Trust (open from 9am).

Please note that you will need to pay £3.50 for parking, payable via the PayByPhone app, or exact change. National Trust members park for free.

Useful information

FAQ Terms & Conditions Race rules Withdrawals Help at the event

If you have a question please email [email protected]

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