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Chaz Davies has kept hold of top spot in the final free practice session at Losail with a quarter of a second gap on Jonathan Rea.
The Aruba.it Racing Ducati rider backed up his impressive FP2 pace on both long and short runs in the 15 minute session to remain quickest and on his final flying lap produced a 1m 58.150s to go 0.239s clear of Rea.
Xavi Fores retained his third spot for Barni Ducati, as did Sylvain Guintoli in fourth for Pata Yamaha, as Sykes found some late gains to rise to fifth ahead of Honda's Nicky Hayden and the second factory Yamaha of Alex Lowes.
Jordi Torres once again led the Althea BMW charge in eighth in front of Honda's Michael van der Mark as the Spaniard's team-mate Markus Reiterberger completed the top ten.
MotoGP-bound Karel Abraham also found late improvements to move up to 11th on the Milwaukee BMW ahead of factory Ducati rider Davide Giugliano with Alex de Angelis, Leon Haslam and Lorenzo Savadori rounding out the top 15 riders going into Superpole qualifying.