Hamburg were celebrating a return to Germany's top flight after five years. Heindenheim came back from 0-2 down and were promoted for the first time in their history.
Hamburg must now recover quickly from the emotional blow, with the first leg of the promotion play-off at home to Stuttgart on Thursday and the return leg, at home, four days later. The last date of the Bundesliga.2 was held this Sunday and where it was reached with the certification that Darmstadt was one of the promoted a week ago.