Marc Marquez was in a class of his own at the Circuit of the Americas, powering to pole and then continuing that pace into the Sprint, snatching the lead at the end of the first lap and never looking back to taste victory, his fifth win in a row as a factory Ducati rider.
He was joined on the podium by Alex Marquez in second and Pecco Bagnaia in third.
Fabio Quartararo finished sixth, Pedro Acosta seventh and Ai Ogura ninth; all Alpinestars riders.