Six-times MotoGP champion Marc Marquez continued his perfect start with factory Ducati as he completed a weekend double at the season-opening Thailand Grand Prix on Sunday, finishing ahead of his younger brother Alex.

Six-time world champion Marc Marquez won the season-opening Thai MotoGP on Sunday to complete a dominant debut weekend at his new factory Ducati team, having also romped to Saturday's sprint.The Spanish great took the 26-lap grand prix by 1.

Spain's Marc Marquez completed a double with victory in the opening race of the MotoGP season at the Thailand Grand Prix. The 32-year-old six-time former champion won Saturday's sprint race at the Buriram International Circuit in his first competitive outing for his new team Ducati and started Sunday's race as pole-sitter.