BERLIN: Bundesliga top-scorer Robert Lewandowski's 25th goal of the season was enough for Bayern Munich to comfortably beat Cologne 1-0 and provisionally stretch its lead to eight points Saturday.

Lackluster defending allowed Lewandowski score in the 10th minute, firing inside the far corner after Xabi Alonso and then Thiago Alcantara encountered a similar lack of resistance. With seven games remaining, Lewandowski already has one more than his previous season-best of 24 for Borussia Dortmund in 2012-13.

Dortmund can restore the five-point gap on Sunday.

Japan's Genki Haraguchi scored one and set up another for Hertha Berlin to beat Ingolstadt 2-1 and consolidate third place.

Also, Andre Schuerrle salvaged a 1-1 draw for Wolfsburg against Darmstadt, Hoffenheim won 3-1 win at Hamburger SV and Mainz drew 1-1 at Werder Bremen.