MotoGP world champion moved a step closer to retaining the title after winning the Aragon Grand Prix for Honda on Sunday.
Marquez, who started third on the grid, outfought Italian Andrea Dovizioso after pole-sitter Jorge Lorenzo crashed out on the opening turn to claim his first victory in five MotoGP races.
Marquez changed to a soft rear tire just before the start of the race and took control in the last three laps, fending off the Ducati rider Dovizioso to win his home Grand Prix.