Milton Keynes Marathon Weekend The Rightmove MK Marathon Weekend 2020 has been confirmed as Saturday 2nd and Sunday 3rd May 2020. Next year's Rightmove MK Marathon Weekend will be the 9th running of this popular and multi-award winning event, which attracts 10,000 runners over all distances as well as 700 volunteers. With 3 races to choose from, with varying degrees of difficulty, there is something for all the family to take part in. Now is your chance to join #TeamTVAA to take part and raise money for Thames Valley Air Ambulance. Click here to book your place!