Jorge Lorenzo stretches MotoGP lead with Catalunya victory

Dani Pedrosa, who had held Lorenzo at bay for much of the race, finished second ahead of Tech 3 Yamaha's Andrea Dovizioso.

Casey Stoner meanwhile finished fourth, the first time he has failed to finish on the podium, excepting crashes, since Misano in 2010.

Despite qualifying only fifth, Pedrosa's Honda jumped into the lead at the start, and was initially hounded by fellow second-row man Ben Spies.

The Texan, chasing his best finish for Yamaha this year, attempted to pass Pedrosa at Turn 3 on the second lap. Once inside however he could not hold his bike, running wide and into the gravel. He eventually fought back to finish 10th.

In his absence Lorenzo took up the challenge, shadowing Pedrosa throughout the opening half. After switching positions several times, Lorenzo's pressure eventually told when Pedrosa ran wide at La Caixa six laps from the end.

Once through, Lorenzo was able to edge away, eventually claiming his third win of the season for Yamaha by five seconds.

His championship gains were exaggerated by Stoner's struggles. The Australian was edged down to fourth at the start and remained there for the majority of the race.

Initially he, Dovizioso and the second Tech 3 Yamaha of Cal Crutchlow were locked together, but the Honda was not able to cope with Dovizioso's pace and dropped back.

Only in the final laps, when the Italian began struggling with his tyres, was Stoner able to exert serious pressure, but Dovizioso held on to take third ahead of Stoner and Crutchlow.

Gresini Honda's Alvaro Bautista came through the field to claim sixth, while Ducati's Valentino Rossi - who shadowed Bautista until the closing stages - finished seventh. Encouragingly for the Italian and Ducati, he remained within nine seconds of the lead until the late stages of the race.

LCR Honda's Stefan Bradl and the second Ducati of Nicky Hayden captured eighth and ninth, ahead of the returning Spies.

Aspar Aleix Espargaro finished as top CRT rider in 13th following a long battle with team-mate Randy de Puniet and Gresini's Michele Pirro.

Results - 25 laps:

Pos  Rider             Team/Bike                    Time/Gap
 1.  Jorge Lorenzo     Yamaha                     43m07.681s
 2.  Dani Pedrosa      Honda                        + 5.003s
 3.  Andrea Dovizioso  Tech 3 Yamaha                + 9.361s
 4.  Casey Stoner      Honda                        + 9.544s
 5.  Cal Crutchlow     Tech 3 Yamaha               + 12.506s
 6.  Alvaro Bautista   Gresini Honda               + 13.948s
 7.  Valentino Rossi   Ducati                      + 17.555s
 8.  Stefan Bradl      LCR Honda                   + 23.478s
 9.  Nicky Hayden      Ducati                      + 30.410s
10.  Ben Spies         Yamaha                      + 32.897s
11.  Hector Barbera    Pramac Ducati               + 36.144s
12.  Karel Abraham     Cardion Ducati              + 56.229s
13.  Aleix Espargaro   Aspar Aprilia             + 1m08.054s
14.  Michele Pirro     Gresini FTR-Honda         + 1m08.775s
15.  Randy de Puniet   Aspar Aprilia             + 1m10.483s
16.  James Ellison     Paul Bird Aprilia         + 1m13.090s
17.  Mattia Pasini     Speed Master Aprilia      + 1m20.903s
18.  Yonny Hernandez   Avintia FTR-Kawasaki      + 1m21.235s
19.  Danilo Petrucci   Ioda-Aprilia              + 1m41.207s
20.  Ivan Silva        Avintia Inmotec-Kawasaki  + 1m41.888s

Retirements:

Colin Edwards     Forward Suter-BMW             24 laps