Registration opens at 08:45

Hog roast and pizza available at the end of the race

Kids cross country races with on the day entries

Sorry NO on the day entries

M12k A Brief History:

The Marnhull 12k was brought back to life in April 2016 by a couple of Dorset Doddlers and St Gregory’s School PTFA. The original race was held some years ago and we still follow most of the original route.

We are very proud of our race; all proceeds help fund St Gregory’s Primary School.   You will see lots of people from the local community all helping deliver an enjoyable, safe experience for runners and supporters alike.

On this page you will find lots of information and updates will appear as and when we have any news. Be sure to check the course in our video below.

We do not want anyone leaving us without a full belly, you will have freshly baked pizza, hog roast or tea and cake to enjoy at the finish line. 

There will be kids off road races, as well as various bits and bobs to entertain the children, we really do try and make it a little jamboree, fun is guaranteed.

Fancy yourself as quick? why not try and better our male and female course records noted below along with archive results.

Want to know if you are entered? click here to find out.

Above all, come and enjoy yourself, spring is a wonderful time to run and Marnhull looks great in the spring.​

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The countdown is on

race starts in:

2022/04/03 10:30:00

Think you can beat our course records?

Each year we have prizes if you can!

Men's Course Record

Men's Course Record


Iain Trickett

Dorset Doddlers


Ladies Course Record

Ladies Course Record


Sarah Trimm



Meet our classes

Archive Results

Without our sponsors the race you’ll enjoy just wouldn’t be the same.  We’d like to take the opportunity to thank this years main sponsor Spar.

Tom Hawtree and the team at our local Spar are fervent supporters of the school, this year they’ll be supplying each of our runners with not only their race number and water at the finish line but financial assistance to help us stage a successful race.

The race will commence just near the shop so please fill up whilst you’re nearby.

Spar UK have been great supporters of British Athletics and  have help bring communities together through sport so a natural fit with the M12k.

We are blessed to have so many local businesses helping our school through sponsoring the race, keep an eye out on race day for our KM sponsors:

Dorset Tech

Somerset County Cars

Dorset Doddlers

Friars Moor

A race without prizes would be a bit mean, we’ll have plenty for our winning runners.  Without the generous donation of prizes we’d not be able to raise as much money for the school as we’d wish.  Thanks to our prize donors:

Hall & Woodhouse

Whether you’re a runner, supporter or a Marnhull local you’ll not go hungry on race day.

We have a hog roast from Dan & Bethan of The Happy Meat Company

If pizza is your thing, look no further than Gia and The Box

The Route


Commencing on New Street in Marnhull before taking in Fifehead Magdalen and then returning to St Gregory’s School the M12k is best described as undulating.

A challenge for all abilities, there’s ups , downs and a bit of flat, the scenery shows North Dorset at it’s best with winding country lanes and some great views, particularly as you crest the climb atop Fifehead Magdalen.

Take a look at out course video for a better insight, this was shot during the colder months so please expect the course to be greener come April.