BERLIN, Sept 21 (Reuters) - Ambitious 1899 Hoffenheim swept aside Borussia Dortmund 4-1 to move into second place on Sunday, as Hamburg SV slipped back with a 3-0 defeat at VfL Wolfsburg.
Hoffenheim, the wealthy village team enjoying their first season in the Bundesliga, were inspired by Bosnia's Vedad Ibisevic, who struck twice to take his season tally to six.
Schalke 04 lead the standings with 11 points from five matches following their 1-0 win over Eintracht Frankfurt on Saturday.
Hoffenheim are second on 10 points, with VfB Stuttgart trailing them on goal difference after they beat Karlsruhe 3-1 on Sunday.
Hamburg, needing a win to reclaim top spot, were overwhelmed in Wolfsburg and drop to fourth, also on 10 points.
Wolfsburg, coached by former Hamburg great Felix Magath, took the lead when Ashkan Dejagah stole in at the near post after 15 minutes and further goals from Alexander Madlung and Grafite settled the match before half-time.
Bayern Munich, beaten 5-2 at home to Werder Bremen on Saturday, slip to eighth place on eight points, behind Werder on goal difference.
Hoffenheim have risen from obscurity thanks to the long-term financial backing of German software pioneer Dietmar Hopp and, more recently, the clever coaching of Ralf Rangnick.
After two wins from their first two Bundesliga matches their form dipped but Sunday's victory in Mannheim, where they play while their new stadium is being built, proved they are well worth their place in the top flight.
Ibisevic opened the scoring after five minutes and fellow Bosnian Sejad Salihovic doubled the lead from a free-kick.
Ibisevic added his second just after the break and Brazilian midfielder Carlos Eduardo struck on the break for the fourth, with Felipe Santana pulling one back for Dortmund from a late corner.