Two-time NTT INDYCAR SERIES champion Josef Newgarden led pre-qualifying practice Saturday morning for the REV Group Grand Prix presented by AMR at Road America, as speeds climbed due to cooler temperatures and the use of Firestone alternate “red” tires. Newgarden’s best lap was 1 minute, 45.3399 seconds in the No. Newgarden’s best lap, on the grippy Firestone alternate “red” tires, was more than two seconds quicker than the top lap during Friday practice of 1:47.6781 by Romain Grosjean. “There’s definitely a big grip drop-off, which is challenging but it’s very fun to watch because people are going to struggle,” Newgarden said of the grip level of the alternate tires. Final practice is live on Peacock at 5:30 p.m. (ET) Saturday. Colton Herta was second in this morning’s practice at 1:45.4730 in the No.

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