Marcus Ericsson in the No.28 Bryant Andretti Global Honda was the pace setter on day 1 at Barber Motorsports Park.
The Swede set a fastest time of 01:07.7470s. Alex Palou in the No.10 DHL Chip Ganassi Racing Honda was second just ahead of Colton Herta.
Will Power was fourth for Team Penske in the No.12 Verizon Chevrolet.
Alexander Rossi in the No.20 Java House ECR Chevrolet was fifth with a time of 01:07.8098s.
Josef Newgarden was sixth just ahead of a fast Devlin DeFrancesco with a time of 01:07.9302s.
Scott McLaughlin who spun twice in the session was eighth just ahead of Nolan while Scott Dixon rounded out the top ten.
Kyle Kirkwood was 11th just ahead of AJ Foyt Racing’s Santino Ferrucci in the No.14 Sexton Properties Chevrolet.
Christian Lundgaard was 13th just ahead of Pato O’Ward.
Louis Foster was 15th just ahead of Marcus Armstrong and Felix Rosenqvist who celebrates his 100th INDYCAR start on Sunday.
Graham Rahal was 18th just ahead of Conor Daly and Christian Rasmussen.
Callum Ilott was 21st just ahead of David Malukas and Rinus VeeKay.
Sting Ray Robb was 24th just ahead of Kyffin Simpson while Robert Shwartzman and Jacob Abel rounded out the order.