The setup: a season-long battle
The 2021 Formula 1 season was one of the most competitive in the sport's history. Lewis Hamilton and Max Verstappen traded the championship lead throughout the year, with neither driver able to establish a decisive advantage. Heading into the final race at Abu Dhabi, they were level on points — Verstappen led by eight points after the tiebreaker rule, but effectively it was winner-takes-all.
The race: Hamilton in control
For most of the race, Hamilton was in complete control. He started from pole, led every lap, and appeared to be cruising toward his eighth world championship. Verstappen, starting from second, could not find a way past. With 15 laps remaining, it looked like Hamilton's race to lose.
Then Nicholas Latifi crashed at Turn 14.
The safety car that changed everything
The safety car was deployed, bunching the field together. Hamilton lost his 11-second lead. Verstappen pitted for fresh soft tires, while Hamilton stayed out on worn hard tires. The stage was set for a final-lap shootout.
But the restart procedure was where the controversy erupted. Race director Michael Masi initially indicated that all lapped cars would be allowed to unlap themselves. Then he changed his mind, allowing only the five cars between Hamilton and Verstappen to unlap. The rest remained lapped.
The final lap
On the final lap, Verstappen had fresh soft tires and a clear run at Hamilton's worn hards. At Turn 5, Verstappen made the pass stick. He won the race and the championship. Hamilton finished second.
The decision was immediately controversial. Mercedes protested the result, arguing that the sporting regulations required all lapped cars to unlap themselves. The protest was dismissed. The result stood.
The aftermath
The 2021 Abu Dhabi Grand Prix changed F1's approach to race control. Michael Masi was replaced as race director. The FIA introduced a new race control structure with multiple officials making decisions collectively rather than relying on a single individual. The sporting regulations were clarified to prevent similar ambiguity in the future.
Why it remains debated
The 2021 Abu Dhabi Grand Prix remains the most debated race in F1 history because it combined everything that makes the sport compelling: two great drivers, a season-long battle, a dramatic finish, and a controversial decision that determined the outcome. Whether the decision was right or wrong depends on who you ask. What is not in doubt is that it changed F1 forever.