(Atlanta, GA)  --  Kurt Busch outraced the field and his own brother to take the Quaker State 400 in Sunday's NASCAR Cup Series race at Atlanta Motor Speedway.  Busch passed his younger brother Kyle with 25 laps remaining to clinch a spot in the 16-driver Cup playoff field.  Martin Truex Jr., Alex Bowman, and Ryan Blaney rounded out the top-five.  The race was the final one at Atlanta Motor Speedway before it undergoes renovations for the 2022 season.