Jorge Lorenzo produced a dominant display to take victory in the Czech Republic round on Sunday and admitted afterwards it was "important" for the Championship.
Starting the Brno race in pole position after a record-breaking lap on Saturday, Lorenzo made a blistering start and he went on to claim the victory, finishing three seconds ahead of defending Champion Marc Marquez from Repsol Honda while Valentino Rossi was more than 10 seconds off his pace.
The victory means Yamaha riders Lorenzo and Rossi are now tied on 211 points with seven rounds still remaining, but it is the former who leads the standings as he has won five races compared to his team-mate's three while Marquez is 52 points adrift.
"Luckily I had more pace to beat Marc and claim an important victory for the Championship," Lorenzo said. "I'm leading Valentino and for Marc it is more difficult to recover."
Lorenzo opted for the medium rear tyre while his rivals went for the harder rubber and he admits he was worried it would come back to bite him.
"The weather was warming up so I was worried about the end of the race," the Spaniard added. "Finally the tyres I felt better and I could manage to open the gap after six laps. Then it was difficult as the bike was sliding a lot."