At the halfway point in the season finale at Sonoma, the race is under caution for the second time following a crash involving teammates and championship contenders Will Power and Juan Pablo Montoya on a Lap 39 restart.
On Lap 42, Sebastian Saavedra leads the race for the second time in his No. 8 Ganassi Racing Chevrolet. He is followed by Marco Andretti, Tony Kanaan, Oriol Servia, Sebastien Bourdais, Takuma Sato, Simon Pagenaud, Gabby Chaves, Scott Dixon and Josef Newgarden.
Other championship contenders rank: Graham Rahal (11th), Helio Castroneves (19th) and Power and Montoya run in 23rd and 24th following the collision.
On Lap 4, Castroneves had to pit to replace front-wing damage he received on the start. He also went from red to black tires.
Dixon would pit on Lap 13 to change tires and on Lap 14, while the leaders of Will Power and Josef Newgarden pitted, Power’s teammate, Pagenaud, stopped next to Power’s pit stall in order to let him exit. Doing so kept Newgarden from exiting his own pit stall. After a few moments, Newgarden had to exit through the pit stall Power had just vacated. The incident will be reviewed post-race.
The first set of green flag pit stops cycled through on Lap 23 with Power once again in the lead.
The race’s first caution waved on Lap 23 when the No. 20 Chevrolet of Luca Filippi fell off the pace due to throttle sensor issues, but did not stop on the track.
Only the leaders pitted and Scott Dixon beat Power off pit road. Rahal’s stop was slowed by issues with lug nut issues on the left-front tire.
Those that stayed out on the caution were Sebastian Saavedra, Marco Andretti, Oriol Servia, Tony Kanaan and Sabastien Bourdais. Dixon and Power restarted 13th and 14, respectfully. Montoya restarted 16th, one spot ahead of Rahal.
The second caution waved halfway through the Lap 39 restart when Power was tagged by Montoya entering a turn, sending the defending champion into the dirt. The contact damaged Montoya’s front wing. Rahal was running right behind the teammates.