Arrow McLaren SP’s Pato O’Ward in the No.5 Arrow McLaren SP Chevrolet set the fastest time in practice ahead of qualifying for Sunday’s Sonsio Grand Prix of Road America after setting a time of 01:45.2681s.
Detroit Grand Prix race winner Will Power in the No.12 Verizon 5G Team Penske Chevrolet was second fastest with a time of 01:45.3849s.
Chip Ganassi Racing’s Alex Palou in the No.10 American Legion Honda was third fastest with a time of 01:45.4062s. Andretti Autosport’s Alexander Rossi in the No.27 NAPA Auto Parts AutoNation Honda who was second in Detroit last weekend ended the session in fourth place despite suffering from a clutch issue that restricted his running in the session. The Californian set a time of 01:45.5576s.
Josef Newgarden in the No.2 Hitachi Team Penske Chevrolet was fifth with a time of 01:45.5744s just ahead of Andretti Autosport’s Colton Herta in the No.26 Gainbridge Honda who set a time of 01:45.7664s.
Chip Ganassi Racing’s Marcus Ericsson in the No.8 Huski Chocolate Honda was seventh with a time of 01:45.8079s just ahead of Romain Grosjean and Scott McLaughlin while six-time series champion Scott Dixon in the No.9 PNC Bank Chip Ganassi Racing Honda rounded out the top ten with a time of 01:46.0617s.
Arrow McLaren SP’s Felix Rosenqvist was P11 just ahead of Christian Lundgaard and Meyer Shank Racing’s Helio Castroneves and Simon Pagenaud.
Dale Coyne Racing’s David Malukas was 15th with a time of 01:46.2816s just ahead of Juncos Hollinger Racing’s Callum Ilott who set a fastest time of 01:46.4851s. Conor Daly was 17th in the BitNile Chevrolet just ahead of Devlin DeFrancesco and Graham Rahal who set a time of 01:46.6307s.
Rinus VeeKay rounded out the top twenty with a time of 01:46.6619s just ahead of Jack Harvey who set a time of 01:46.8522s while Takuma Sato was 22nd fastest.
Jimmie Johnson in the No.48 Carvana Honda was 23rd fastest completing 14 laps with a time of 01:47.8402s. Dalton Kellett and Kyle Kirkwood were 24th and 25th fastest respectively just ahead of Tatiana Calderon while Simona De Silvestro set a fastest time of 01:48.4582s completing 13 laps for Paretta Autosport.