Saturday morning in Brno offered a rare opportunity for the premier class to get their feet wet, almost literally, on a cool track soaked in rain. And no one gives a punishing to rain tyres like Marc Marquez can, the world champion immediately finding about two seconds on his rivals. The sun had mercy and made an appearance to quickly start drying down the surface but the Spaniard was untouchable in the changing conditions. Halfway through the session, dry patches were spreading like peeling sunburns but not quite enough for slick tyres and Marquez could afford to watch the final third of the session from the comfort of his garage. If rain does make a comeback for qualifying or even the race, Honda should be fairly confident in their champion’s pace, consistently in the 2:04s (and back on the standard aluminium frame).
Six tenths of a second back, Maverick Viñales managed only one 2:04 time and was his compatriot’s main challenger, while Suzuki wildcard Sylvain Guintoli impressed as the final rider within a second of Marquez. Danilo Petrucci made it four different manufacturers in the top four and was followed by the Yamahas of Valentino Rossi and Fabio Quartararo. Joan Mir, Pol Espargaro, Miguel Oliveira and Andrea Iannone completed a diverse top ten. The likes of Andrea Dovizioso and Alex Rins ended their morning over two seconds down on the leader.
Despite the very fast lap times in the wet, they were obviously nowhere near threatening the combined top ten from Friday, so Quartararo remained the fastest man in practice and would be joined by Marquez, Miller, Dovizioso, Viñales, Rins, Morbidelli, Crutchlow, Rossi and Petrucci directly in the second qualifying session.