Pierre-Emerick Aubameyang scored twice to give Borussia Dortmund a 2-1 win over Mainz on Saturday.
Aubameyang, who told Bayern Munich striker Robert Lewandowski “the race is started” after his hat trick in Bayern’s 6-0 win on Friday, opened the scoring with a header in the 17th minute.
He sealed the result with a penalty in the closing stages, before Yoshinori Muto pulled one back for Mainz in injury time.
Alexander Meier scored early and Eintracht Frankfurt held on to defeat Schalke 1-0.
The 13th-minute strike was enough for Frankfurt, who finished with 10 men following Michael Hector’s late sending off.
Marcel Risse and Anthony Modeste provided the goals for Cologne, who eased to a 2-0 win at home against Darmstadt to open the season.
Risse tapped in Leonardo Bittencourt’s pass before a thunderstorm interrupted the action for 12 minutes in the second half, and Modeste added the second goal just after the hour mark.
Wolfsburg won 2-0 at Augsburg with goals from Daniel Didavi and Richardo Rodriguez.
Didavi scored his first goal for the club by jumping on a loose ball just inside the penalty area in the 35th minute, before Rodriguez’s free kick ended matters in the 89th minute,
Hamburg could only draw 1-1 with visiting Ingolstadt despite United States forward Bobby Wood’s first Bundesliga goal for the home side.
Wood latched on to a long ball from Hamburg goalkeeper Rene Adler, held off his marker and drilled a low shot past Orjan Nyland.
Ingolstadt equalised with just over 10 minutes of the game remaining when Lukas Hinterseer capitalised on defender Cleber’s error.