Andrea Bertolini gave the Swiss Team Maserati Quattroporte its maiden pole position in a rain-affected International Superstars Series qualifying session at Valencia's Circuit Ricardo Tormo.

The top spot changed hands several times during the session, with Audi Sport Italia's Ermanno Dionisio, BMW Team Italia driver Stefano Gabellini and Fabrizio Armetta (Motorzone Chevrolet) all taking turns at the head of the timesheets.

At the end of the session though it was Bertolini who was on top, with a time nearly a second quicker than anybody else. Luigi Ferrara was second in his CAAL Racing Mercedes, with Armetta third. Max Pigoli was fourth in his Romeo Ferraris Mercedes, with Gabellini fifth.

Sergio Hernandez gave Campos Racing a strong grid position by ending the session sixth. His teammate Isaac Tutumlu was eighth, the Spanish pair sandwiching Dionisio. Reigning champion Thomas Biagi was ninth, with Audi's Riccardo Bossi tenth. Johnny Herbert was eleventh, with championship leader Michela Cerruti down in 13th.

Qualifying session results:

Pos. Driver Team Car Time/Gap
1 Andrea Bertolini Swiss Team Maserati Quattroporte 1:56.022
2 Luigi Ferrara CAAL Racing Mercedes AMG C63 0.941
3 Fabrizio Armetta Motorzone Chevrolet Lumina CR-8 1.026
4 Max Pigoli Romeo Ferraris Mercedes AMG C63 1.685
5 Stefano Gabellini BMW Italia BMW M3 E92 1.698
6 Sergio Hernandez Campos Racing BMW M3 E92 1.938
7 Ermanno Dionisio Audi Sport Italia Audi RS4 1.970
8 Isaac Tutumlu Campos Racing BMW M3 E92 2.479
9 Thomas Biagi BMW Italia BMW M3 E92 2.541
10 Riccardo Bossi Audi Sport Italia Audi RS4 3.041
11 Johnny Herbert Romeo Ferraris Mercedes AMG C63 4.131
12 Francesco Sini Ferlito Motors Jaguar XF 4.411
13 Michela Cerruti Romeo Ferraris Mercedes AMG C63 4.444
14 Alberto Cerqui BMW Italia BMW M3 E92 4.602
15 Riccardo Romagnoli CAAL Racing Mercedes AMG C63 4.755
16 Alex De Giacomi Movisport BMW M3 E90 4.920
17 Sandro Bettini Movisport BMW M3 E90 5.104
18 Francesca Linossi Movisport BMW M3 E92 6.017
19 Andrea Dromedari Romeo Ferraris Mercedes AMG C63 6.768
20 Nico Caldarola Roma Racing Team Mercedes AMG C63 8.172
21 Roberto Benedetti RC Motorsport Cadillac CTS V 8.179
22 Luigi Cecchi Ferlito Motors Jaguar XF 8.711