Michelin had brought four front tires to the test, and the factory men spent the morning and the early afternoon selecting their favorite from the four. The plan was for the riders to then try that tire in a full race simulation, to see how the tire stood up to a race distance of 23 laps.
That plan was quickly canceled. There had been no falls during the morning and early afternoon, but on the first laps of his long run, Jorge Lorenzo crashed out at Materassi. Once the track was cleared, it was the turn of Marc Márquez to go out, but on the second lap of his run, he too crashed, this time at Arrabbiata 1. With the debris of the Repsol Honda out of the way, Valentino Rossi followed, the Italian falling at Correntaio. At that point, the plan was abandoned.
All three crashes appear to follow the same pattern, and a similar pattern to the crashes at Sepang. When the riders start pushing hard, the extra drive and grip from the Michelin rear causes the front to wash out, dumping them on the floor.