Red Bull driver Max Verstappen was fastest in qualifying for the third time this year, having used the soft tyre from start to finish of each session. The red tyre will be used by those at the front of the grid tomorrow, with Charles Leclerc the only driver to run the medium in Q2. However, the Ferrari driver will start outside of the top 10 on this compound due to a grid penalty.
Verstappen received the Pirelli Pole Position Award from Brazil's Rubens Barrichello: the driver who has started more Formula 1 races than anyone else, finishing runner-up in the world championship twice with Ferrari.
The fastest strategy on paper for the 71-lap Brazilian Grand Prix is a one-stopper, using the red soft tyre for 26 to 29 laps and the white hard for 42 to 45 laps.
The second-quickest way is to run the red soft for 34 to 37 laps, and the yellow medium for another 34 to 37 laps. About as fast as this is actually a two-stopper: with two stints on the soft of 18 to 21 laps each, plus a medium run for 29 to 35 laps. These stints could all be done in any order, with a soft-medium-soft plan potentially making sense as a two-stopper, for example.
The reason for this is that with much warmer conditions expected on Sunday compared to Friday, the hardest compound as well as a possible two-stopper all become much more interesting.
What's slightly slower is a one-stopper with the medium for 24 to 27 laps, and the hard for 44 to 47 laps.
Higher temperatures. The weather tomorrow is expected to be warmer again, which could further affect tyre behaviour and therefore race strategy.
The short lap at Interlagos means that getting through traffic will soon become an issue for the frontrunners, again affecting the timing of the stops.
Interlagos has little run off area, with both free practice sessions yesterday stopped by red flags. This might influence pit stop strategy.
In Q2, Leclerc was faster on mediums than most soft tyre runners. Tomorrow he has to fight his way up the order, but he clearly has the pace.
Mario Isola: "As expected, track temperatures were warmer today, well above 30 degrees centigrade for the first time so far this weekend, which meant that the track offered a bit more grip. This increase in temperature is expected to continue tomorrow, which means that we could see some variations in strategy. With three different teams in the top three of the grid, we're set for some close competition, so even a small change could make a difference. The front of the grid all start on the soft tyre, which means that it's a level playing field for the first stint at least: whoever makes the most of it could gain an important advantage."