Spanish rider Jorge Lorenzo wins on home straight to take championship lead . It was Lorenzo 's third victory in five races this season , and second in a row after winning at Le Mans last month . The 2010 world champion leads home compatriot Dani Pedrosa in Sunday 's race . Last year 's champion Casey Stoner loses ground in standings after finishing fourth . Seven - time world champion Valentino Rossi is back in seventh for Ducati .
Spanish rider Jorge Lorenzo wins on home straight to take championship lead . The 2010 world champion leads home compatriot Dani Pedrosa in Sunday 's race . Last year 's champion Casey Stoner loses ground in standings after finishing fourth . Seven - time world champion Valentino Rossi is back in seventh for Ducati .