Pierre Gasly will take a 12 point lead over Antonio Giovinazzi into the final race of the 2016 GP2 Series season after dominating the feature race with a lights-to-flag win.
The Frenchman began the weekend behind his Prema team-mate and title rival Giovinazzi but had already reduced the lead to three points ahead of the race with a comfortable pole position.
From here the Frenchman proceeded get away well from the lights and was never challenged thereafter, keeping his cool as different strategies played out to emerge a clear winner over Nobuharu Matsushita.
A race where the disparity between the two tyre compounds essentially made the race a waiting game, Matsushita led all the way up to lap 27 of 31 as he went long on his stint, but would come out well behind Gasly.
Even so, the result was the Japanese driver's second podium of the season, ahead of Russian Time's Artem Markelov, who also secured his second podium of 2016.
Despite struggling initially on the soft compound tyre to back the field up as Gasly escaped, Sergey Sirotkin recovered to fourth position, ahead of Giovinazzi.
The Italian endured a disappointing race in the pack as he struggled to make headway from his sixth place starting position. Leaving him on the back foot heading into a sprint race that he will start from fourth, it will take a top two result to keep him in contention, even if Gasly fails to score.
Norman Nato was fifth on the road but demoted to sixth with a time penalty for speeding in the pit lane, ahead of series returnee Johnny Cecotto and Alex Lynn, who starts race two from pole.