Josef Newgarden claimed pole position for the Detroit Grand Prix while Scott Dixon and Scott McLaughlin will start ninth and 10th respectively.
Group 1
After the first run of the session, Christian Lundgaard sat at the top of the timesheets, with McLaughlin in second.
Castroneves jumped to the top late in the session, as drivers set their final lap times, remaining the quickest driver at the end of the session with a 1.15.43 minute lap.
McLaughlin made it through to the Fast 12 session, having set a time good enough for fourth.
Helio Castroneves, Pato O’Ward, Marcus Ericsson, McLaughlin, Simon Pagenaud, and Romain Grosjean were the six drivers to make it through to the next round of qualifying.
Group 2
Rookie David Malukas was the fastest driver in Group 2 after the first run, setting a 1.16.32 minute lap to narrowly beat the lap set by Alexander Rossi.
Dixon jumped to the top with a minute and a half remaining to sit almost a tenth clear of Felix Rosenqvist until Josef Newgarden knocked him off the top spot shortly after.
Malukas jumped back to the top at the end of the session to sit a tenth and a half clear of Rossi when the checkered flag came out.
Rosenqvist lost his two fastest lap times after an incident with Jimmie Johnson, which saw him penalised for qualifying interference.
Dixon ended the session fifth, enough to make it through to the next session.
Malukas, Rossi, Herta, Newgarden, Dixon, and Takuma Sato, were the top six who would make it into the Fast 12 session.
Fast 12
Malukas again looked strong early in the session, holding the fastest lap time through the first part of the session.
A number of drivers including Dixon and McLaughlin were on their final laps when the red flag came out for Grosjean who made contact with the inside wall which then sent him into the outside wall.
The checkered flag had just come out for the session, though drivers would have been able to complete the laps they were on had the red flag not come out.
Dixon and McLaughlin both sat outside the top six at the time in ninth and 11th respectively, though it was Grosjean that separated the pair, losing his lap time and putting McLaughlin up into 10th.
O’Ward, Malukas, Castroneves, Pagenaud, Sato, and Newgarden would advance to the final round of qualifying.
Fast 6
At the very end of the session, Newgarden jumped to the top to claim pole position for the race ahead of Sato, with a lap just over a tenth of a second quicker.
Pagenaud and Castroneves will start from the second row of the grid, while Malukas who had been strong in the earlier sessions will start on row three alongside O’Ward.
The Detroit Grand Prix will get underway from 7 am Monday morning.
Main Image: Karl Zemlin