1) The document contains standings from the MotoGP World Championship classification after the CommercialBank Grand Prix of Qatar. 2) Casey Stoner of Australia leads the rider standings with 25 points, followed by Valentino Rossi of Italy with 20 points and Jorge Lorenzo of Spain with 16 points. 3) Ducati leads the constructor standings with 25 points, followed by Yamaha with 20 points and Honda with 11 points. 4) Fiat Yamaha Team leads the team standings with 36 points, followed by Ducati Marlboro Team with 29 points and San Carlo Honda Gresini with 17 points.