Sebastian Vettel has claimed his third pole position in four races this season with another stunning late lap in qualifying at Shanghai. The German will lead an all-Red Bull front row, continuing the team's 100 per cent pole record in 2010, with his team-mate Mark Webber 0.248 seconds slower in second place. There was nothing to choose between the Red Bull drivers in the first two sectors on their last laps, but Vettel pulled out a margin in the last few corners and claimed pole. Fernando Alonso took third for Ferrari, four places but only 0.2s ahead of his team-mate Felipe Massa. Q3 brought huge disappointment for Lewis Hamilton. Fastest in both Q1 and Q2, he could not muster a pole challenge when it mattered and will start only sixth, behind Mercedes' Nico Rosberg and his team-mate Jenson Button. Michael Schumacher was back in ninth in the second Mercedes, between Renault's Robert Kubica and Force India's Adrian Sutil. Classification 1. Vettel - Red Bull-Renault 1:36.317 2. Webber - Red Bull-Renault 1:35.978 3. Alonso - Ferrari 1:35.987 4. Rosberg - Mercedes 1:35.952 5. Button - McLaren-Mercedes 1:36.122 6. Hamilton - McLaren-Mercedes 1:35.641 7. Massa - Ferrari 1:36.076 8. Kubica - Renault 1:36.348 9. Schumacher - Mercedes 1:36.484 10. Sutil - Force India 1:36.671 11. Barrichello - Williams 1:36.664 12. Alguersuari - Toro Rosso 1:36.618 13. Buemi - Toro Rosso 1:36.793 14. Petrov - Renault 1:37.031 15. Kobayashi - Sauber 1:37.044 16. Hulkenberg - Williams 1:37.049 17. de la Rosa - Sauber 1:37.050 18. Liuzzi - Force India 1:37.161 19. Glock - Virgin 1:39.278 20. Trulli - Lotus 1:39.399 21. Kovalainen - Lotus 1:39.520 22. di Grassi - Virgin 1:39.783 23. Senna - HRT 1:40.469 24. Chandhok - HRT 1:40.578