Marquez was second Sunday .
Miller , riding a KTM , won his 23 - lap race to pull to within 20 points of series leader Alex Marquez , MotoGP champion Marc Marquez ' younger brother .
champion was second Sunday .
Miller , riding a KTM , won his 23 - lap race to pull to within 20 points of series leader Alex Marquez , MotoGP champion Marc Marquez ' younger brother .