Romain Grosjean laid down a marker in free practice for the GP2 Series round at Barcelona's Circuit de Catalunya.

The Frenchman, who jointly leads the standings after the season opener in Istanbul with Sam Bird, posted his fastest time just five minutes into the session. The DAMS driver's time would still be good enough to end the session on top by more than half a second.

Davide Valsecchi ended the session in second place for Team AirAsia, with Jules Bianchi third for ART.  Addax pairing Giedo van der Gardeand Charles Pic were fourth and sixth fastest respecitvely, sandwiching Super Nova driver Luca Filippi.

Bird meanwhile could only manage 24th spot, 2.9 seconds down and Grosjean and ahead only of rookie Kevin Ceccon and Jolyon Palmer, who failed to set a time.

Free practice results:

Pos Driver Team Time Gap Laps
1 Romain Grosjean DAMS 1:30.559   13
2 Davide Valsecchi Team AirAsia 1:31.081 0.522 14
3 Jules Bianchi Lotus ART 1:31.214 0.655 11
4 Giedo van der Garde Barwa Addax Team 1:31.237 0.678 12
5 Luca Filippi Super Nova Racing 1:31.265 0.706 7
6 Charles Pic Barwa Addax Team 1:31.410 0.851 10
7 Fabio Leimer Rapax 1:31.507 0.948 16
8 Pal Varhaug DAMS 1:31.536 0.977 14
9 Dani Clos Racing Engineering 1:31.656 1.097 13
10 Luiz Razia Team AirAsia 1:31.672 1.113 14
11 Marcus Ericsson iSport International 1:31.834 1.275 14
12 Max Chilton Carlin 1:31.840 1.281 16
13 Stefano Coletti Trident Racing 1:31.889 1.330 10
14 Alvaro Parente Racing Engineering 1:31.930 1.371 13
15 Fairuz Fauzy Super Nova Racing 1:31.982 1.423 6
16 Esteban Gutierrez Lotus ART 1:32.031 1.472 14
17 Michael Herck Scuderia Coloni 1:32.040 1.481 15
18 Johnny Cecotto Ocean Racing Technology 1:32.073 1.514 16
19 Julian Leal Rapax 1:32.144 1.585 7
20 Kevin Mirocha Ocean Racing Technology 1:32.201 1.642 16
21 Mikhail Aleshin Carlin 1:32.211 1.652 14
22 Josef Kral Arden International 1:32.499 1.940 4
23 Rodolfo Gonzalez Trident Racing 1:32.778 2.219 14
24 Sam Bird iSport International 1:33.491 2.932 18
25 Kevin Ceccon Scuderia Coloni 1:34.274 3.715 13
26 Jolyon Palmer Arden International     1