Team Summary:
The opening Friday practice for the 2016 Italian GP would see both Williams Martini drivers complete installation laps on the soft tyre. On their return Valtteri would go quickest but would drop to third behind Rosberg ad Hamilton. Rosberg was currently quickest with a 1m:24.946. Both Williams cars were running the Monza aerodynamics with the smaller rear wing. Hamilton would go quickest with a 1m:24.123. Valtteri would drop to fourth behind Perez with Grosjean fifth followed by Palmer Grosjean would move ahead of Valtteri to be fourth. Rosberg was out on the supersoft tyre followed by Hamilton. Rosberg would set a 1m:23.736 to go fastest while Valtteri would move back up to third.

But Vettel and Raikkonen would move up to third and fourth seeing Valtteri fifth. Alonso was sixth followed by Perez, Grosjean, Verstappen and Gutierrez. Both McLaren and Force India would run the halo during the session. Perez was now fourth on the supersoft tyre. Hamilton would laso improve with a 1m:23.643 still on the supersoft tyre. With fifty minutes remaining the track was empty as drivers pitted to return their first set of tyres back to Pirelli. The top ten was Hamilton, Rosberg, Vettel, Perez, Raikkonen, Verstappen, Valtteri, Ricciardo, Alonso, and Button. Both Mercedes cars were back out on soft tyres as Rosberg set a 1m:22.959 to go fastest.

The Williams team would say: "Big focus in #FP1 is assessing different rear wing options. Low drag & high power are vital so we create a special Monza rear wing package." Valtteri's next run would see him move up to fifth while Felipe was fifteenth. Felipe would drop to seventeenth while Raikkonen would set a 1m:24.465 remaining fourth. Both Red Bull's were running on the medium tyre with Verstappen and Ricciardo seventh and eighth. With ten minutes remaining Valtteri would drop to seventh and Felipe was nineteenth. Again Raikkonen would improve with a 1m:24.047 to be third. The top ten with the end of the session was Rosberg, Hamilton, Raikkonen, Vettel, Perez, Grosjean, Bottas, Verstappen, Gutierrez, Ricciardo. For Williams Valtteri and Felipe were seventh and fourteenth in what was a largely uneventful session for the team despite Felipe suffering an engine issue.

Valtteri Bottas:
After his installation lap Valtteri would return still on the soft development tyre and would set a 1m:26.220 to go fastest but he would drop to third behind the Mercedes cars. Valtteri would improve with a 1m:25.771 remaining in third. He would drop to fourth behind Perez. Valtteri would pit having complete nine laps. Valtteri would express himself happy with the balance of his car. While in his pit Valtteri would drop to fifth but upon his return, still on the soft tyre, he would set a 1m:25.298 to again be third. Valtteri had dropped to seventh as he continued to run on the soft tyre. He had improved with a 1m:25.094. Valtteri would pit in line with having to return this set of tyres. Valtteri would return running on a new set of soft's and would set a 1m:24.834 to be fifth. A 1m:24.785 would see Valtteri remaining fifth, as he continued to put in laps. Valtteri would drop to seventh to be behind Perez and Grosjean. Valtteri continued having completed fourteen laps with five minutes left in the session. He would finish the session in seventh.

Felipe Massa:
After his installation lap Felipe would remain in his garage for a period of time. With thirty minutes of the session completed Felipe was still in his garage. The Williams team would announce that there was an issue with Felipe's car stopping him coming out. The rear bodywork was off his car while his mechanics worked on fixing his car. It was confirmed that he had a boost issue and that it would be at least another thirty minutes before he could come back out. Felipe would finally come out for his first run coming out on the prototype soft tyre. His first lap was a 1m:26.859 to be seventeenth. He would improve with a 1m:26.795 remaining in the same position. A 1m:26.562 to be sixteenth with just over thirty minutes remaining. A 1m:26.461 saw him fifteenth. Felipe would pit and would drop to seventeenth, having completed nine laps. Felipe would return with ten minutes remaining running on new soft tyres. Felipe would run wide at Ascari ruining his lap but his next lap was a 1m:25.965 to be fifteenth, followed by a 1m:25.840 to move up one spot.

Pos  Driver         	Team		        Time     Laps
1  Nico Rosberg 	Mercedes 		1m22.959s 37 
2  Lewis Hamilton 	Mercedes 		1m23.162s 36 
3  Kimi Raikkonen 	Ferrari 		1m24.047s 16 
4  Sebastian Vettel 	Ferrari 		1m24.307s 17 
5  Sergio Perez 	Force India-Mercedes 	1m24.650s 32 
6  Romain Grosjean 	Haas-Ferrari 		1m24.763s 17 
7  Valtteri Bottas 	Williams-Mercedes 	1m24.785s 37 
8  Max Verstappen 	Red Bull-Renault 	1m24.982s 25 
9  Esteban Gutierrez 	Haas-Ferrari 		1m25.113s 19 
10 Daniel Ricciardo 	Red Bull-Renault 	1m25.120s 17 
11 Jenson Button 	McLaren-Honda 		1m25.351s 23 
12 Alfonso Celis 	Force India-Mercedes 	1m25.367s 30 
13 Fernando Alonso 	McLaren-Honda 		1m25.507s 14 
14 Felipe Massa 	Williams-Mercedes 	1m25.840s 18 
15 Marcus Ericsson 	Sauber-Ferrari 		1m25.853s 20 
16 Carlos Sainz 	Toro Rosso-Ferrari 	1m25.973s 20 
17 Daniil Kvyat 	Toro Rosso-Ferrari 	1m26.074s 20 
18 Esteban Ocon 	Manor-Mercedes 		1m26.391s 30 
19 Felipe Nasr 		Sauber-Ferrari 		1m26.439s 21 
20 Pascal Wehrlein 	Manor-Mercedes 		1m26.762s 28 
21 Jolyon Palmer 	Renault 		1m26.811s 35 
22 Kevin Magnussen 	Renault 		1m26.956s 32