Haslam and Biaggi remain at the top
Marco Melandri (Yamaha World Superbike Team) was seventh, a whisker behind his team-mate Eugene Laverty, while Carlos Checa (Althea Racing Ducati) moved up four places in to finish in tenth.
The second session was characterized by numerous surprises, including a crash for Noriyuki Haga (PATA Racing Team Aprilia) and a blown engine for wild-card Fabrizio Lai (Echo Sport Racing Company Honda), an incident that caused the red flags to come out and the session to be stopped for track cleaning.
Eliminated from Superpole were Ruben Xaus (Castrol Honda), Roberto Rolfo and Mark Aitchison (Pedercini Kawasaki), James Toseland (BMW Motorrad Italia Superbike Team) and Lai.