The 2016 Indianapolis 500 champion dominated the second half of the Gallagher Grand Prix to snap a 49-year winless drought and score his eighth IndyCar career victory.
The 23-year-old native from Monterrey, Mexico, benefitted from a late on-track incident involving Josef Newgarden to grab his fourth NTT IndyCar Series career victory at Iowa.
The two-time IndyCar champion from Hendersonville, Tennessee, led all but 42 of 250 laps en route to his fourth IndyCar victory of 2022 in the first of a Iowa Speedway doubleheader feature.
The 29-year-old native from Hamilton, New Zealand, led a race-high 45 of 80 laps en route to his second IndyCar career victory in his second full-time season in the series.
The 30-year-old Rossi from Nevada City, California, is set to join Arrow McLaren SP on a multiyear basis following seven full-time season at Andretti Autosport.
The 23-year-old Kirkwood from Jupiter, Florida, is set to replace Alexander Rossi as the driver of the No. 27 Andretti Autosport Dallara-Honda for the 2023 NTT IndyCar Series season.