LEVERKUSEN (Germany), March 31 — Bayern Munich lost 2-0 to Borussia Dortmund yesterday, their first home “Der Klassiker” loss in a decade, allowing Bayer Leverkusen, who came back to win 2-1 over Hoffenheim, to go 13 points clear with seven games remaining.

Leverkusen’s victory put the onus on Bayern in Saturday’s late match, but the German champions lost at home with Dortmund scoring goals in each half through Munich-born Karim Adeyemi and defender Julian Ryerson.