Marc Marquez has secured his fifth MotoGP title after taking an eighth victory of the 2018 season in the Japanese Grand Prix.

Honda rider Marquez started only sixth at Motegi, but carved his way up to second on the opening lap before engaging in a nailbiting duel with Andrea Dovizioso.

He grabbed the lead on the 21st lap of 24 with a bold pass at Turn 9, but Dovizioso stuck to his tail and looked poised to fight back until the Italian lost the front end of his Ducati at Turn 10 on the penultimate lap and slid into the gravel.

That left Marquez with a clear run to victory, with Honda stablemate Cal Crutchlow moving up to second as a result of Dovizioso’s demise ahead of Suzuki rider Alex Rins.

Marquez’s fifth premier class championship moves him level with Mick Doohan, with only Valentino Rossi (seven) and Giacomo Agostini (eight) having scored more.

The 25-year-old also becomes the youngest rider to ever reach the milestone, eclipsing Rossi, who was 26 when he scored his fifth straight 500cc/MotoGP title in 2005.

Marc Marquez wins in Japan and takes the 2018 World Championship