2017 Berlin Marathon The Berlin Marathon is one of the largest and most popular road races in the world. In 2016 the race had 46,950 entrants (41,283 runners, 5,445 inline skaters, 185 hand bikers, 37 wheel-chairers) from 122 countries, and more than one million spectators. If you’re interested in taking part for Brainwave, we are asking that participants raise £1,000. Register your interest by email at email@example.com. Do it quick because places are limited and we only have 3 places remaining!