The Formula One World Championship introduced 10 points for a win in 1991. The change increased the winner’s reward from the previous nine points and formed part of a broader revision to championship scoring.
The 1991 system awarded points to the top six finishers: 10 for first, 6 for second, 4 for third, 3 for fourth, 2 for fifth, and 1 for sixth. Another important change that year was that every race counted toward the drivers’ championship, replacing the earlier system that allowed only a driver’s best results to be counted.
Ayrton Senna benefited from the new system while winning his third World Championship. He scored seven victories during the 16-race season and finished ahead of Nigel Mansell.
The year can be confused with later changes. In 2003, the points gap between first and second was reduced to 10–8, and in 2010 the modern 25-point winner’s score was introduced. Those were different revisions; 1991 is the specific year when a victory first became worth 10 points.