(repeating for additional subscribers)
* Lorenzo beats out rival Pedrosa
* Extends championship lead to 77 points
(Adds details, quotes)
By Jason Hovet
BRNO, Czech Republic, Aug 15 (Reuters) - Spaniard Jorge Lorenzo won his seventh race of the season at the Czech Grand Prix on Sunday to extend his Moto GP championship lead to 77 points.
The 23-year-old Yamaha rider started third on the grid but quickly jumped into the lead on the first lap, where he stayed for the rest of the race on the 5.4-km Brno circuit.
He finished more than five seconds ahead of compatriot and championship rival Dani Pedrosa, who began on pole.
Australian Casey Stoner, who is third in the standings, finished third on a Ducati, beating out Ben Spies into fourth in the American's first front row start.
Italian world champion Valentino Rossi finished fifth, where he started the race.
Lorenzo became only the third rider in 62 years of GP to finish in the top two in the first 10 races of a season.
"I had a good start. After the second, third corner I was in first and decided to push the maximum," Lorenzo said.
"It was a difficult race because of the wind."
Riders -- and the 148,000 fans who watched Sunday's race -- were battling wet weather and storms throughout the weekend, slowing the lap pace.
Lorenzo set the fastest lap midway through the race, when he started pulling away, at one minute 57.524 seconds, more than a second slower than Pedrosa's best qualifying lap on Saturday.
Loris Capirossi, Andrea Dovizioso and Mika Kallio all crashed out of the race.
Lorenzo, who was runner up to team mate Rossi in the standings last year, has won five of the last six races. Pedrosa edged him four weeks ago in Germany for the Honda rider's second victory of the season.
Pedrosa said the conditions for Sunday's race were not ideal.
"By the middle of the race I just couldn't improve," he said. "I was spinning a lot and couldn't get the drive out of the corners."
Last year's Czech winner Rossi is set to announce who he will race for in 2011 later on Sunday. [
]The 31-year-old, holder of nine world titles across all classes, is in the last year of his contract with Yamaha, and Ducati have said they want to sign him.
His move to Ducati has been widely expected in motorsport circles after he distanced himself from an immediate future in Formula One or rallying.
(Editing by Justin Palmer; To query or comment on this story email sportsfeedback@thomsonreuters.com) (prague.newsroom@thomsonreuters.com; Reuters Messaging: jason.hovet.reuters.com@reuters.net; +420-224 190 476))
For the Reuters sports blog Left Field go to: http://blogs.reuters.com/sport/))
Please double click on the news links below:
[
] for more motorcycling stories