Buemi leads Arden one-two in sprint

The majority of the grid started on wet rubber, so Mike Conway led from pole with Jerome d'Ambrosio jumping ahead of Karun Chandhok to take second. Chandhok lost further places to Campos duo Vitaly Petrov and Lucas di Grassi at the hairpin, and then spun at the 180-degree bend.

D'Ambrosio went off at Estoril at the start of lap two, and would later clash with Chandhok, putting him out.

By lap four, those on slick tyres were lapping quicker than those at the front, which sparked a flurry of pitstops for the wet-runners. Petrov braved it out on wets at the front, but even he pitted for slicks on lap nine - just when it started to rain again...

The shower was brief, so those who had started on slicks were in the box seat. Buurman took up the lead, chased by Super Nova's Alvaro Parente and Buemi. Bruno Senna was next up, despite a spin at 180.

Buemi took second when Parente slid wide at Lycee, and then chased down Buurman, who held a six second lead at one point. Four laps later, they were nose-to-tail, and after Buurman slid wide at Estoril, the Arden cars raced side-by-side into the Adelaide hairpin, where Buemi hit the front.

He pulled away to a 6.6-second win ahead of Buurman. Luca Filippi came out of the pack to snatch third, as Parente dropped out with a mechanical failure, while Senna limped home fifth, losing a spot in the closing stages to di Grassi as his gearbox selector barrel began to malfunction. Conway scored the final point in sixth.

Points leader Giorgio Pantano retired after a clash with Petrov damaged his car. He now leads the standings by seven points.

Pos  Driver             Team                  Time
 1.  Sebastien Buemi    Trust Team Arden      43:08.504
 2.  Yelmer Buurman     Trust Team Arden       +  6.639
 3.  Luca Filippi       ART Grand Prix         + 23.953
 4.  Lucas Di Grassi    Barwa Campos Team      + 24.479
 5.  Bruno Senna        iSport International   + 29.439
 6.  Mike Conway        Trident Racing         + 35.924
 7.  Pastor Maldonado   Piquet Sports          + 38.074
 8.  Andreas Zuber      Piquet Sports          + 43.060
 9.  Kamui Kobayashi    DAMS                   + 45.558
10.  Javier Villa       Racing Engineering     + 46.756
11.  Marko Asmer        FMS International      + 52.901
12.  Adrian Valles      BCN Competicion        +  1 lap
13.  Carlos Iaconelli   BCN Competicion        +  1 lap
14.  Ho-Pin Tung        Trident Racing         + 2 laps
15.  Michael Herck      DPR                    + 2 laps
16.  Roldan Rodriguez   FMS International      + 2 laps
17.  Alberto Valério    Durango                + 2 laps
18.  Vitaly Petrov      Barwa Campos Team      + 3 laps

Retirements:

     Driver             Team                  Laps
     Alvaro Parente     Super Nova Racing     24
     Benjamin Hanley    Durango               24
     Diego Nunes        DPR                   21
     Giorgio Pantano    Racing Engineering    14
     Karun Chandhok     iSport International  13
     Romain Grosjean    ART Grand Prix        6
     Andy Soucek        Super Nova Racing     2
     Jerome D'Ambrosio  DAMS                  2