Antonio Giovinazzi will start the GP2 Series race one from pole position in Belgium after pipping Prema team-mate Pierre Gasly to the top spot on Friday afternoon.
Meanwhile championship leader Sergey Sirotkin could only manage P13 following a difficult session for the Russian driver.
Rookie Giovinazzi secured pole in the closing seconds as he bettered Gasly's best time of 1m56.607s by just over a tenth, and with too little time left on the clock for Gasly to go out for another run, he had to settle for second behind the Italian.
Lining up in third is Rapax's Gutav Malja followed by the Racing Engineering duo of Norman Nato and Jordan King in fourth anf fifth respectively.
Arthur Pic claimed sixth ahead of Raffaele Marcielloa and DAMS driver Alex Lynn in eighth, more than a second off the pace.
ART's Nobuharu Matsushita and Carlin's Marvin Kirchhofer completed the top ten.
Sirotkin will start well down the field in 13th after a mistake on his first flying lap carried through to his second. He failed to recover during the second stint too, the pressure getting the better of the ART driver.