Jorge Lorenzo wins the MotoGP San Marino Grand Prix . The Spaniard won his first race in a grand prix since he was forced to retire from last year's Australian GP after crashing out of contention on lap one. Lorenzo 's championship rival Dani Pedrosa crashes out on the first lap of the race . Valentino Rossi finishes second at the track named after his late friend Marco Simoncelli .
Jorge Lorenzo wins the MotoGP San Marino Grand Prix . The Spaniard leads the world championship by 38 points with five races remaining . Lorenzo 's championship rival Dani Pedrosa crashes out on the first lap of the race . Valentino Rossi finishes second at the track named after his late friend Marco Simoncelli .