Honda’s Marc Marquez has taken another significant stride towards a sixth MotoGP title by seizing victory in a last-lap duel at the San Marino Grand Prix.

The Spaniard moved 93 points clear at the top of the standings with six races remaining after denying French Petronas Yamaha rookie Fabio Quartararo a first top-flight victory at Misano’s Marco Simoncelli circuit on Sunday.

Yamaha’s Maverick Vinales finished third with Australian rider Jack Miller finishing ninth.

Marquez’s closest championship rival Andrea Dovizioso, on a Ducati, was only sixth. Marquez now has 275 points to the Italian’s 182.

Ducati’s Miller is in ninth place on 101 points.