The final practice session for the premier class was another feather in Yamaha’s cap, with Franco Morbidelli wrestling back the lead in the closing stages of FP4, after demonstrating a fine consistent rhythm in preparation for the race. His main challenger proved to be Alex Marquez, the rookie thoroughly enjoying his time on familiar playground and briefly topping the session before settling for second, one tenth down on Morbidelli. Joan Mir was another of the contenders for top spot and the Suzuki man finished the session in third position, only three hundredths of a second behind his compatriot and with solid pace as well.
Pol Espargaro added a KTM to the mix in fourth, with Maverick Vinales joining the top five lineup, two tenths off his leading colleague and consistently quick. Bruised but not broken, Fabio Quartararo was declared fit after his painful-looking FP3 crash and the Frenchman seemed to have already put that behind him, briefly leading FP4 and ending it in sixth, with consistent pace in the low 1:49s.
Takaaki Nakagami and Cal Crutchlow added two more Hondas to the top positions, while Ducati seemed to be enjoying the warmer conditions a bit more, with Andrea Dovizioso and Jack Miller rounding out the top ten. However, Alex Rins in 11th position was only three tenths off top spot, with one second covering pretty much the entire field.