Get Involved Our fundraising events Milton Keynes Marathon 2020 The Milton Keynes Marathon is ranked within the top 10 marathons in the UK. The majority of the MK Marathon route is incredibly green and scenic. It includes beautiful parks and lakes, picturesque villages and the canal towpath, and offers a truly spectacular experience for runners. By raising funds for the British Thyroid Foundation you will be helping to support people of all ages with a thyroid disorder. How to apply for the Milton Keynes Marathon Sign up below to register for a place in the race. We ask our fundraisers to pay a £25.00 registration fee and a minimum sponsorship target of £200. Once you have registered we will send you a registration form asking for your details and if you would like a BTF t-shirt to wear on the day! Thank you for your support! Booking for this event has now closed.