FUJI SPEEDWAY (Japan), AFP: Fernando Alonso took full advantage of others' mistakes and misfortunes to claim his second successive victory on Sunday when he won the Japanese Grand Prix.The Spaniard made the most of incidents and errors that wrecked the day for championship contenders Lewis Hamilton and Felipe Massa as he steered his Renault to the 21st win of his career, following his victory in Singapore.He came home 5.2 seconds clear of second placed Pole Robert Kubica of BMW Sauber with defending drivers champion Finn Kimi Raikkonen third for Ferrari.Brazil's Nelson Piquet was fourth in the second Renault ahead of Italian Jarno Trulli of Toyota and the two Toro Rossos of Frenchman SebastienHamilton failed to score a point for McLaren Mercedes after a drama-filled afternoon following a poor start from pole position and some impetuous moves.He eventually finished 12th. But his 
main title rival Brazilian Felipe Massa of Ferrari also struggled through collisions, errors and penalties on his way to finishing eighth to claim a single point.This reduced Hamilton's lead to six points with two races remaining in China and Brazil. Hamilton's teammate Finn Heikki Kovalainen retired with a blown engine in the early stages.In the constructors' championship, Ferrari jumped back into the lead with a six points cushion over McLaren.When the lights went out, the start produced chaotic drama as Hamilton made a slow getaway and struggled to keep up with Raikkonen who pulled clear to lead as they surged towards the first corner.Hamilton responded immediately by switching to the inside and attempting to pass the Finn under braking, but he was unable to make the corner and went off across the run-off area.
main title rival Brazilian Felipe Massa of Ferrari also struggled through collisions, errors and penalties on his way to finishing eighth to claim a single point.This reduced Hamilton's lead to six points with two races remaining in China and Brazil. Hamilton's teammate Finn Heikki Kovalainen retired with a blown engine in the early stages.In the constructors' championship, Ferrari jumped back into the lead with a six points cushion over McLaren.When the lights went out, the start produced chaotic drama as Hamilton made a slow getaway and struggled to keep up with Raikkonen who pulled clear to lead as they surged towards the first corner.Hamilton responded immediately by switching to the inside and attempting to pass the Finn under braking, but he was unable to make the corner and went off across the run-off area.