Hansi Flick has tasted victory in 15 of his opening 18 Bundesliga matches in charge of Bayern Munich - a feat only Pep Guardiola has previously managed in the club's history.
Bayern beat second-placed Borussia Dortmund 1-0 in the behind-closed-doors Klassiker at Signal Iduna Park through Joshua Kimmich's outrageous first-half strike to move seven points clear at the top.
It proved the only goal of the game, although Dortmund may feel aggrieved to have seen a penalty appeal turned down when Jerome Boateng appeared to handle in the box.
The visitors endured the added anguish of seeing star forward Erling Haaland limp off the field halfway through the second 45 minutes, as they saw a run of six consecutive Bundesliga victories come to an end.