Between them, Dortmund and Bayern have won the league title every year since 2009, when Wolfsburg lifted the trophy while Borussia were German champions in 2011 and 2012, on rare off-seasons for the Bavarian giants
The 33-year-old Lahm will retire in May and is hoping to sign off with the eighth Bundesliga title.
Bayern are currently 13 points ahead of second-placed RB Leipzig, with fellow Champions League quarter-finalists Dortmund three points further back in third.
But Lahm says the consistent failure over the years of their rivals, barring Dortmund, has made Bayern’s life easy.
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