Bayern Munich dropped Bundesliga points for only the second time this season, as Borussia Dortmund were defeated.
Augsburg inflicted a first defeat of the season on Werder Bremen after recovering from an early deficit to win 4-2.
Bayer Leverkusen and Werder Bremen played out an extraordinary 3-3 draw on Friday night.
Ludovic Obraniak wants to leave Werder Bremen and has revealed that Sunderland and West Ham were interested in him.
Bayern Munich were held to a 1-1 draw by Schalke, while Bayer Leverkusen ran out 4-2 winners against Hertha Berlin.
Werder Bremen were held to their second 1-1 draw of the season by Hoffenheim, who extended their unbeaten start.