OYAMA, Japan (AP) - Lewis Hamilton moved to the brink of making Formula One history - with a little help from the weather.
The British driver won the Japanese GP on Sunday, using his pole position to avoid dangerous spray from rival cars in wet and wild conditions.
Rain, spray and even fog caused race organizers to start the race behind a safety car until conditions improved.
"I think for me (it was) one of the most, if not the most, difficult races I had to do. The conditions were changing so much," Hamilton said.
Hamilton took a 12-point lead in the overall standings over defending champion and McLaren teammate Fernando Alonso, who crashed out of the race, while the Ferrari drivers had tire trouble.
Renault driver Heikki Kovalainen was second and Ferrari's Kimi Raikkonen third.
Hamilton can become the first rookie to win the world title if he finishes the Oct. 7 Chinese GP with at least an 11-point lead over Alonso and Raikkonen third.
Hamilton has 107 points, Alonso is second with 95 and Raikkonen has 90.
The last race of the season is in Brazil on Oct. 21.
"There are two races to go. I need to knuckle down and I won't be going partying," Hamilton said. "The key for me is to focus on the next race and take it as it comes."
Hamilton led a procession around the Fuji speedway for 19 laps with Alonso second. Then the safety car went and there was racing again with the cars spraying water far behind them, causing viewing difficulties for all except Hamilton in first.
After 25 laps, Hamilton and Alonso were 2.7 seconds apart before Hamilton was bumped by Robert Kubica and both spun briefly.
A little later Alonso and Toro Rosso?s Sebastian Vettel had an identical incident.
Alonso knew something was wrong. "I think the car was damaged quite a bit by that but I was able to continue," Alonso said.
After the various pit stops, Hamilton regained the lead with 25 laps to go.
No sooner had Hamilton regained the lead than Alonso's race was over in the 42nd lap. He spun and hit the wall hard, sending his car across the wet track like a figure skater doing turns on ice.
Alonso said there was too much water on the track to control his car.
"When I was braking for turn five I just aquaplaned the car and spun," he said. "Unfortunately the walls at that corner are very close to the track so I hit the barrier heavily and that was it."
His car stopped in the middle of the track with debris around him. The Spaniard was helped out of the car and stayed behind a fence for a few laps to contemplate what had happened before leaving the scene of the accident.
Hamilton maintained the lead without a problem for his fourth victory of the season, tying him with Alonso and Raikkonen for the most wins this year.
"It is a big boost in terms of confidence and my drive to be world champion," Hamilton said.
Alonso, however, said he hasn't totally given up hopes of a third straight title.
"I'm not throwing in the towel, but unless there is a retirement from Hamilton we have to be realistic and see that it's very hard to recover six points per race," Alonso said.
Kovalainen and Raikkonen fought hard in the final lap, with the Finnish Ferrari driver overtaking his compatriot twice before Kovalainen came back immediately to regain second and finish on the podium for the first time.
"Everybody has asked me about the last few laps with Kimi but my mirrors had steamed up completely and I couldn't see him," Kovalainen said. "He got past me into turn five on the final lap but I wanted (second) so much that I went back round the outside on the way down to turn 10."
Raikkonen now has 90 points for the season and still has a mathematical chance to take the title.
Raikkonen could have challenged for the victory except for a tire mixup.
"After the race I heard there were some rules ... but the FIA or the race control forgot to tell our team, and we had to pit again under the safety car. So it cost us a lot, but there was nothing we could do at that point," Raikkonen said.
Ferrari said it received an e-mail too late as the cars were already on the track prepping for the start.
"We were amazed that we had to call in the drivers to the pits to change tires," said Jean Todt, the Ferrari team boss.
