In a battle between the side with the best home form in the Bundesliga, Dortmund, and the best away record in the league, Bayern, the visitors started the brighter when Leroy Sane stung the hands of goalkeeper Gregor Kobel. But the hosts hit the front in the 27th minute when Gittens evaded the clutches of Konrad Laimer, ran 45 metres with the ball, and smashed a shot past Manuel Neuer. Vincent Kompany's side - who lost Harry Kane to injury just after the half-hour mark - had plenty of chances to level, but Sane and Thomas Muller missed gilt-edged opportunities.
However, the Bavarians' pressure finally told in the 85th minute when substitute Michael Olise's cross was neatly headed home by Jamal Musiala. In the first Der Klassiker of the season, both teams had to settle for a point but BVB lost their 100 per cent winning record at home in the league this term. Bayern, who remain unbeaten on the road, are seven points clear of second-placed Eintracht Frankfurt - who have a game in hand - and Dortmund are fifth.