Spaniard Marc Marquez (Repsol Honda) clinched his fourth victory of this season after winning the Catalonia MotoGP on Sunday at the Barcelona-Catalunya Circuit in Montmelo, strengthening his grip over the general classification's top spot.

Marquez was followed by French racer Fabio Quartararo (Yamaha), who made his first podium appearance on his MotoGP debut, while Italian Danilo Petrucci (Ducati) came in third.

Marquez is now 37 points ahead of second-placed Italian Andrea Dovizioso (Ducati) in the MotoGP World Standing and 39 points clear of his compatriot Alex Rins (Suzuki).

Dovizioso, who kicked off the race from the fifth spot, managed at first to get past Marquez and Quartararo, who clinched the second pole position of the season on Saturday.

Despite the good start, Dovizioso did not finish the race as he crashed on Lap 2 at Turn 10 along with the Yamaha duo Maverick Viñales and Valentino Rossi and Jorge Lorenzo.

Four world champions left the contest which cleared the way for Marquez.

Marquez was attentive and led the race with more than a second ahead of Italian Danilo Petrucci (Ducati), who led a pack of Quartararo, Rins, Jack Miller (Ducati) and Joan Mir (Suzuki) among others who kept on chasing them.

The Repsol Honda rider held firm on the lead, leaving no room for doubt about who would occupy the highest podium position in Barcelona.

Following on Marquez, Danilo Petrucci, Alex Rins and Fabio Quartararo were fighting for the second place, with another duo a little behind, formed by Miller and Joan Mir.

Marquez crossed the finish line first in what was his 48th MotoGP victory and the 74th in his racing career, ahead of Quartararo who took advantage of Rins' mistake to make it to the second place despite the efforts of Petrucci.

With just 13 drivers on the track, the fifth spot was occupied by Miller, followed by Mir.

Spaniard Pol Espargaro (KTM) finished seventh, while his countryman Tito Rabat (Ducati) came in ninth.

Honda's Takaaki Nakagami of Japan finished the race in the eighth position. EFE