MotoGP title leader Casey Stoner
cruised to a dominant victory in Sunday's Czech Republic Grand Prix, which saw Dani Pedrosa
crash from the lead, Marco Simoncelli claim a first ever podium and Jorge Lorenzo
fade to fourth.
Unlike his rivals, world champion Lorenzo chose the soften option front tyre - which helped the Yamaha rider take the lead ahead of Repsol Honda riders Pedrosa, Andrea Dovizioso
and Stoner on the opening lap.
But by lap three Lorenzo was starting to have front-end moments, which allowed both Pedrosa and Stoner back past. Moments later poel-sitter Pedrosa lowsided out of the lead, handing the advantage to Stoner.
The Australian then rode steadily into the distance, building an advantage of over eight-seconds on his way to his sixth win of the year - extending his title lead over Lorenzo from 20 to32 points.
Despite a stubborn resistance, world champion Lorenzo was caught and passed by Italians Dovizioso and Simoncelli, with Dovizioso gaining breathing room over his compatriot in the closing stages.
Former 250cc world champion Simoncelli, who has crashed in five races this year and been penalised in another, finally claimed his debut MotoGP rostrum after withstanding late-race pressure from Lorenzo.
Ben Spies - struggling with a pinched nerve in his neck this weekend - brought the second factory M1 home in fifth, 1.6sec from Lorenzo.
Valentino Rossi lost places from his best Ducati qualifying of sixth, but - aided by Pedrosa's exit - recovered the ground lost and crossed the line 2.4sec from Yamaha replacement Spies and 12.6sec from victory.
Suzuki's Alvaro Bautista - the only rider other than Lorenzo to choose the soft front - pressured Rossi for much of the race, before lowsiding from seventh place with six laps to go.