Age difference between the satellite spec GP24 bikes and factory GP25s for the start of the new MotoGP season.

Marc Marquez marked his Ducati debut with an impressive victory on Sunday at the Chang International Circuit in Thailand becoming the first rider since Casey Stoner in 2007 to win on their Ducati debut.

BURIRAM, Thailand — Six-time world champion Marc Marquez used all his experience to fight back from a mid-race wobble to outduel his brother Alex Marquez for a "dream" win in Sunday's season-opening Thailand MotoGP.

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.