Sebastian Vettel won the grand prix of Japan today and threw the championship battle wide open as championship leader Fernando Alonso retired after a crash at the start.

Alonso now leads by four points from Vettel with five races remaining.

Alonso's Ferrari team Felipe Massa mate drove a great race from 10th to come in second followed by Kobayashi in a Sauber.

The McLarens of Jenson Button and Lewis Hamilton came fourth and fifth.