Rahal Letterman Lanigan Racing’s Graham Rahal in the No.15 United Rentals/SoldierStrong Honda ended the final race day warm up of 2017 fastest setting a time of 01:16.9608s at the GoPro Grand Prix of Sonoma ending the session just ahead of Ed Carpenter Racing’s Spencer Pigot.
Chip Ganassi Racing’s Scott Dixon in the No.9 NTT DATA Honda ended the session in third place just ahead of Team Penske’s Helio Castroneves in the No.3 Hitachi Chevrolet.
Series points leader Josef Newgarden in the No.2 Hum by Verizon Chevrolet was fifth fastest just ahead of Andretti Autosport’s Alexander Rossi in the No.98 NAPA Auto Parts with Curb Honda.
Marco Andretti in the No.27 United Fiber and Data Honda ended the session in seventh place just ahead of Takuma Sato and Carlos Munoz.
Ryan Hunter Reay in the No.28 DHL Honda rounded out the top ten. Conor Daly in the No.4 ABC Supply Chevrolet for AJ Foyt Racing was 11th fastest just ahead of Max Chilton in the No.8 Gallagher Honda who brought out a brief yellow after stopping his car however he was able to get it back up and running with the help of the Homatro Safety team.
Rahal Letterman Lanigan Racing’s Zachary Claman DeMelo ended the session in 13th place in the No.13 PaySafe Honda.
JR Hildebrand was 14th fastest for Ed Carpenter Racing just ahead of Dale Coyne Racing’s Sebastien Bourdais in the No.18 Unifin Honda. Reigning series champion Simon Pagenaud in the No.1 DXC Chevrolet ended the session in 16th place.
Chip Ganassi Racing’s Tony Kanaan in the No.10 NTT DATA Honda was 17th just ahead of Ed Jones in the No.19 Dale Coyne Honda.
Will Power was 19th for Team Penske just ahead of Schmidt Peterson Motorsports James Hinchcliffe in the No.5 Arrow Honda while Jack Harvey was 21st in the No.7 AutoNation Honda. Charlie Kimball rounded out the order in 22nd place in the No.83 Tresiba® Honda.