Jenson Button ran away with the Turkish Grand Prix on Sunday to stretch his overall Formula One lead to 26 points with a sparkling sixth victory from seven races. Australian Mark Webber finished runner-up for Red Bull, taking the checkered flag 6.7 seconds behind the Briton to equal his best ever finish, with 21-year-old German teammate Sebastian Vettel third after starting on pole position. Button stretched his championship lead over Brazilian teammate Rubens Barrichello, who failed to finish after a starting glitch left him fighting way down the field, to 26 points with 10 races remaining. The Briton has 61 points, Barrichello 35 and Vettel 29. Button's seventh career win, and fourth in a row, made him the first driver to win in Turkey without starting on pole position since the race made its debut at the Istanbul Park circuit in 2005. It also ended Ferrari's Felipe Massa's run of three wins in a row at the track. Vettel, who made three stops to Webber's two but failed to make the strategy work for him, made a mistake when he hit the kerb into turn nine and went wide at turn 10 on the opening lap, allowing Button to slip past. Vettel said he had been well beaten: “Jenson was just too quick today, I don't think I would have held him anyway,” he said. In what is shaping up to be the most dominant season by a driver since the championship started in 1950, 29-year-old Button also became the first Briton to win four successive races in a single year since Nigel Mansell in 1992. Only five other British drivers, all of them champions, have won six times in a season and that tally does not include current champion Lewis Hamilton. The 24-year-old McLaren driver, wrestling with an uncompetitive car, finished 13th – 80.4 seconds behind Button – unlapped but still out of the points for the third race in succession. Italian Jarno Trulli was fourth for Toyota, a strong comeback after that team's dismal Monaco weekend, with Germany's Nico Rosberg fifth for Williams. Massa was sixth while Poland's Robert Kubica, a title challenger last season, scored his first points of the year for BMW-Sauber in seventh place. Germany's Timo Glock took the final point for Toyota.