All drivers entered for the rain-affected Fuji round of the World Endurance Championship will score the points earned by their respective cars, even if they did not drive in the event.
The stewards of the meeting have waived the rules governing minimum driving times on grounds of force majeure after a result was declared at 16 laps, all of which were run behind the safety car.
Driver changes were made in only three cars in the rain-affected race, which was stopped and restarted twice.
WEC boss Gerard Neveu said: "Regarding the decision to award points to all the drivers, this is the right one. It is the fairest decision we can have."
Half points have been awarded for the the event because more than two laps and less than 70 percent duration were completed.
World championship leaders Allan McNish, Tom Kristensen and Loic Duval now need only to finish fourth at the next round at Shanghai in November to seal the title even if team-mates Andre Lotterer, Benoit Treluyer and Marcel Fassler win and claim the point for pole position.
McNish, Kristensen and Duval took nine points for second place behind the winning Toyota, while their championship rivals took one quarter of a point for finishing as the 14th prototype home after suffering a turbo boosting problem.
Subscribe to Autosport Plus
Register for free