Ingolstadt won the battle of the two sides promoted to the Bundesliga last season with a 3-1 win over Darmstadt.Aytac Sulu headed the visitors in front but two goals in as many second-half minutes saw the Bavarians level matters and then go in front.Robert Bauer got the first with a shot which struck the underside of the crossbar on its way in, before Moritz Hartmann converted from the penalty spot on the hour mark.Hartmann added a third just a few minutes from time to seal Ingolstadt's victory and take them up to eighth in the standings - just a point below the top six.