Would you like your participation in the BMW BERLIN-MARATHON to remain unforgettable? Then take the chance to set a world record now! GUINNESS WORLD RECORDS in partnership with the BMW BERLIN-MARATHON offers runners and inline skaters the opportunity to set world records for the fastest marathon in a costume. With a little creativity and ambition, you could take home your first world record title this year. The registration deadline has been extended to July 1, 2019. More information can be found here.