After 150 laps in the Iowa Corn 300, pole-sitter Helio Castroneves leads the way.
Castroneves, who lost the lead at the race’s outset to Tony Kanaan took the lead from Josef Newgarden around Lap 127 following a restart.
Following Castroneves is Newgarden, Kanaan, Scott Dixon, Graham Rahal, Ryan Runter-Reay, Carlos Munoz, Sage Karam, Ryan Briscoe and Ed Carpenter.
The first caution of the race might be the most important one all year. Points leader Juan Pablo Montoya slammed into the Turn 2 wall on Lap 10 after something broke on his No. 2 Chevrolet.
It’s his first DNF since recording one last year, also at Iowa.
A 14-lap caution period ended on Lap 24 but the remaining 23 cars couldn’t make it around the track once without more trouble.
Stefano Coletti pinched and made contact with Charlie Kimball against the outside wall, resulting in Kimball losing the left side of his front wing and another caution.
While Montoya’s accident benefits championship contender Graham Rahal, the Rahal Letterman Lanigan Racing driver at one point lost two laps after pitting just shy of the 60 lap mark for a low tire.
The Fontana winner quickly got back on the lead lap thanks to offsetting pit cycles and a caution.
Sebastien Bourdais, Will Power and Kimball each briefly led during green flag pit stops that began around Lap 80. Kimball having pitted for the damage from the Lap 24 accident finally pitted on Lap 100.
The third caution of the race waved on Lap 107 after Justin Wilson got loose and skimmed off backstretch wall, giving him a flat tire.
Newgarden took the lead on pit stops and led until pole-sitter Castroneves passed him on Lap 127.