KTM rider is followed by his teammate Jorge Martin, with the Moto3 World Champion ahead of Americas GP winner Tom Luthi, just 0.023s slower than Martin.
Remy Gardner ended in 5th being just 0.002s faster than Alex Marquez, who is aiming for a good result in his home grand prix.
Augusto Fernandez is the first rider in 1.42 in his comeback race after Termas' injury, while Nagashima and Luca Marini are just behind him.
Lorenzo Baldassarri is 10th despite a lot of problems; Championship Leader suffered a lot of technical problems for the most of the session and in the final minutes crashed as well.
Last 4 places for Q2 are taken for the moment by Bo Bendsneyder, Andrea Locatelli, Marcel Schrotter and Enea Bastianini.
Here you can find full time sheet of a really close FP1 in which we have 22 riders in just one second!