Spain's Marc Marquez celebrates his title winning victory at the Japanese MotoGP at Motegi.

Story highlights

Marc Marquez wins Japanese MotoGP

Clinches third world title

Closest rival Valentino Rossi crashes out

Andrea Dovizioso second in Japan

CNN  — 

Marc Marquez clinched his third MotoGP crown in dramatic fashion Sunday with victory in the Japanese round as closest title rivals Valentino Rossi and Jorge Lorenzo both crashed out.

The Repsol Honda rider has an unassailable 77-point lead over Rossi in the championship with three rounds still remaining after his triumph at Motegi, the home circuit for his team’s manufacturer.

Italian legend Rossi had started from pole on his Movistar Yamaha and was involved in an exciting duel with Marquez until an early trip to the gravel ended his chances of a 10th world title.

Rossi’s teammate Jorge Lorenzo, the reigning world champion, was left as the only man who could deny his fellow Spaniard Marquez the title, but while in second place, he too made a painful exit.

It left Marquez to ride to his fifth win of the season and a third world title in four years in the premier class of motorcycling, still shy of his 24th birthday.

With the Yamaha challenge over, Andrea Dovizioso took a fine second for Ducati with Maverick Vinales of Team Suzuki completing the podium with another fine ride.

But all eyes were on Mallorcan hero Marquez, who admitted he had not expected to clinch the championship, the reality only sinking in after Lorenzo exited in dramatic fashion.

“When I saw Rossi out I thought ‘ok, the old style can come back and I’ll go for the victory!’ Then Lorenzo crashed and I missed a lot of gears when I realized what it meant,” he told the official MotoGP website.

Losing the crown to Lorenzo in 2015 as a two-time reigning champion had also acted as a big motivation for Marquez this season.

Read: Marquez looks to move on after Rossi feud

“It was a big price I paid – losing a title last year – to learn what I know now. I felt more pressure this year and it was hard to manage throughout the season,” he admitted.

But manage he has, as his rivals Rossi and Lorenzo began to feel the pressure, Marquez’s key victory in the previous round at Aragon paving the way for his eventual triumph Sunday.

It is the fifth world title for Marquez, who won earlier championships in the 125cc and Moto2 classes before graduating to MotoGP with such success at a tender age.