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 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.
The 2018 Cup Series champion led 20 of 242 over-scheduled laps and prevailed in a late crossover battle with Kyle Busch to capture the inaugural Cup event in Madison, Illinois.
The 28-year-old Blaney from High Point, North Carolina, survived an overtime shootout against Denny Hamlin to cash in a million dollars for the first time in his career at the Lone Star state.
The Alva, Florida, native bumped AJ Allmendinger and Alex Bowman out of the racing groove on the final lap to earn the first win in NASCAR's premier series for himself and Trackhouse Racing in Austin.
The reigning NASCAR Cup Series champion led four times for 28 of 200 laps and fended off the field in a four-lap shootout to claim his second victory at Auto Club Speedway.
