Marathon Relay runs alongside the Milton Keynes Marathon event, pitting teams of four runners (adults only 17+) against each other, each competitor running a leg of 6.2, 6.9, 6.9 and 6.2 miles. The relay event is open to businesses, charities, clubs or even groups of friends and is characterised by a strong element of friendly competition as teams compete to be seen as the fittest or the fastest.