Rosenqvist set the fastest four-lap average of 234.081mph around the 2.5-mile oval, boasting a quickest single lap 234.534mph.
With the track temperature up 20-degrees since final practice, speeds were slightly slower as the cars required more downforce on the warmer racing surface. But light winds helped the drivers to stay flatout on the throttle.
Ferrucci unleashed a stellar four-lap run of 233.911mph that set the pace for much of the session in his Chevrolet-powered Foyt machine.
“That’s about as close to the wall as I’ve ever been in qualifying here,” said Ferrucci. “Definitely the fastest four laps of my life. I want to make history and I want that pole.”
But Rosenqvist virtually matched Ferrucci’s first and second lap speeds and dropped off less on his third and fourth tours to go to the top with 234.081mph, beating Ferrucci by two tenths of a second over the four laps.
“It really helped to see my team-mates run and they gave me good feedback,” said Rosenqvist. “We actually bettered our run from yesterday when it was hotter. Let’s go and do it again.”
Rinus VeeKay (Ed Carpenter Racing), who suffered an exhaust header problem in final practice, almost matched Ferrucci’s pace lap by lap to produce 233.801mph, which was good for third.
He said: “Very happy, it was tough this morning with the issues, but the crew brought their A-game and the engine felt great. Pretty happy with that.”
Source: Autosport