The premier class got the worst conditions of the weekend for their final practice session but Marc Marquez still found his way to the fastest time of the day in the mid to high 2:03s. The gap to the opposition started around the two second mark and steadily reduced until the Spaniard moved the goalposts again in the final couple of minutes. Eventually he took the flag seven tenths faster than his closest rival and with sun making a comeback over the proceedings.
With dry conditions promised for the race, there was not too much prove in FP4, other than Marquez still got it in tricky conditions, but Maverick Viñales was once again his closest challenger. The Yamaha man finished the session narrowly ahead of the Ducati of Andrea Dovizioso, with Danilo Petrucci as the last man within a second of the leader. Jack Miller added to the Ducati trio in the top five, while Johann Zarco stole a bit of the limelight with his fairly impressive sixth place and pace not to dissimilar to those surrounding him.
The Frenchman even managed to finish ahead of the Yamaha trio of Valentino Rossi, Franco Morbidelli and Fabio Quartararo. Alex Rins rounded out the top ten, closely followed by Pol Espargaro and the second-best Honda of Cal Crutchlow in 12th position.