Registration starts October 19 and ends November 1, 2015. New: groups of 3 people can register together and will be drawn together, if they are lucky. The participation limit stands at 40,000 of which 30,000 will be drawn by the lottery. The rest goes to tour operators, sponsors, charities and jubilee runners. Find further details starting in the beginning of October on the website of the BMW BERLIN-MARATHON.