Kansas Cup race results, points standings
With Busch turning 36 years old Sunday, it marked the fifth time in NASCAR Cup Series history that a driver has won on his birthday - and the second time that Busch has done so.
KANSAS RESULTS: Where everybody finished at Kansas
On May 2, 2009, Busch celebrated his 24th birthday with a win at Richmond International Raceway. That completed a weekend sweep for Busch, who won an Xfinity Series race the night before.
Kevin Harvick, Brad Keselowski, Matt DiBenedetto and Chase Elliott completed the top five finishers.
Denny Hamlin (finished 12th on Sunday) remains the regular season standings leader by 87 points over Martin Truex Jr. (finished sixth).
DRIVER POINTS: Where everybody is in the Cup Series standings
William Byron (finished ninth) moved up to third in the standings ahead of Joey Logano (finished 17th). Ryan Blaney (finished 21st) is still in fifth place.