青山博一
In the MotoGP race, Valentino Rossi achieved his first win of the season to go top of the world championship standings, the world champion came home ahead of home favourite Dani Pedrosa, with Casey Stoner in third place. In the 250cc race, Hiroshi Aoyama capitalised on a late mistake of another home favourite, Álvaro Bautista, to take his first win since the 2007 Malaysian motorcycle Grand Prix. In the 125cc race, British rider Bradley Smith dominated the race to achieve his first victory at the 50th attempt, after title rivals Andrea Iannone and Julián Simón both crashed.