The two-time Xfinity Series champion from Corning, California, led a race-high 38 of 86 over-scheduled laps before fending off Chastain in overtime to grab his second Cup Series career victory.
The 40-year-old Allmendinger from Los Gatos, California, led all but 20 of 62-scheduled laps en route to his third Xfinity Series victory of 2022 at the Brickyard.
Chase Elliott finished third in the M&M's Fan Appreciation 400 at Pocono, but was awarded the win when first and second place winners Denny Hamlin and Kyle Busch were disqualified.
The 2020 Cup Series champion was awarded his fourth victory of 2022 at the Tricky Triangle following the post-race disqualifications of race winner Denny Hamlin and runner-up Kyle Busch.
Elliott started on the pole and swept all the stages, taking the win with a pass for the lead on Corey LaJoie with two laps to go. It was Elliott's third win of the season, and he leads the points standings.
The two-time Xfinity Series champion from Corning, California, led the final 16 laps and muscled away from Elliott en route to his first win in his 92nd start in NASCAR's premier series.
The 30-year-old Suarez from Monterrey, Mexico, became the first Mexican-born competitor to win in NASCAR's premier series following a dominant run in Sonoma, California.
