Luca Filippi got his home round of the GP2 Series off to a good start by topping the timesheets in first practice at Monza.
The Coloni driver, who is one of the drivers fighting over the runner-up spot in the championship this weekend, led the session early on before being displaced by Alvaro Parente. The Portuguese driver returns to the Carlin hotseat this weekend after missing the previous two rounds due to his GT commitments with McLaren.
Jules Bianchi and Christian Vietoris then both took turns in P1, before Fabio Leimer moved one second ahead of Vietoris. He remained there until Filippi returned to top spot with just over 12 minutes remaining.
Leimer held onto second place, 0.110s behind Filippi. Champion Romain Grosjean moved into third place at the end of the session, displacing fellow Frenchmen Bianchi and Charles Pic. Max Chilton was a promising sixth just ahead of teammate Parente. Giedo van der Garde, the man trying to hang on to second overall, was eighth, with Luiz Razia and Sam Bird completing the top ten.
Julian Leal and Johnny Cecotto's sessions came to early ends after both spinning off. Debutant Stephane Richelmi, who replaces fellow Monegasque Stefano Coletti at Trident this weekend, was 25th of the 26 runners. He only defeated Cecotto, who couldn't set a representative time prior to his exit.