Bayer Leverkusen defeated Werder Bremen 5-0 in the 29th week of the Bundesliga.
The goals that brought the championship to Leverkusen came from Boniface in the 25th minute, Xhaka in the 60th minute and Wirtz in the 68th, 83rd and 90th minutes.
Bayer Leverkusen thus clinched the title ahead of its closest rival, Bayern Munich, with 5 weeks left.
Bayer Leverkusen became champions for the first time in its 120-year history. With the cup they won, Xabi Alonso's students ended Bayern Munich's 11-year hegemony in the league.
Bayer Leverkusen, which extended its unbeaten streak to 43 matches, equaled Juventus' record in European football. Bayer Leverkusen had 38 wins and 5 draws in these matches.