Jordan King took his first GP2 win on Sunday, with Oliver Rowland and Alex Lynn finishing second and third to make it an all-British podium.
King started the race – which began under the Safety Car – from reverse-grid Pole, and was not challenged for the lead all race. Once the Safety Car pulled in to the pits, the Racing Engineering driver was able to pull out a gap of around four seconds over team mate Norman Nato.
Nato, though, struggled on his wet tyres as the track began to dry, and fell rapidly through the pack. Rowland was the first to demote him on Lap 8, followed swiftly by Rafaele Marciello.
Alex Lynn, Nicolas Latifi and Mitch Evans soon followed suit, with Lynn also putting a move on Mitch Evans for fifth place, and later, Luca Ghiotto for fourth.
The Brit was in fine fettle during Sunday's race, climbing from eleventh on the grid to third when the chequered flag fell, making the most of his wet tyres.
The action was halted for one lap when Lafiti spun his DAMS on the exit of turn 2, bringing out the Safety Car on Lap 21, and bunching up the field.
A few backmarkers opted to pit for slick tyres, but as the Safety Car pulled in, Artem Markelov, Norman Nato, Rene Binder, Arthur Pic, Gustav Malja, Marvin Kirchhoefer and Daniel de Jong found it far too slippery still.
On the restart, Lynn seized the final podium spot from Marciello, but was too far back to challenge Rowland of King. Luca Ghiotto looked set to finish in fifth place, but a spin on the very last corner of the race dropped him out of the points.
King won from Rowland, Lynn, Marciello, Antonio Giovinazzi, Sergei Sirotkin, Pierre Gasly, and Evans took the final points. Ghiotto and Sergio Canamasas rounded out the top ten, with Markelov in eleventh the highest-placed slick runner.