Superbike racer Riccardo Russo made an error at the 2012 Italian CIV championship race in Mugello he'll likely remember all his life: He forgot to run the last lap!
To make the situation even worse, Russo was leading the race at the time. As he crossed the finish line, he slowed down and started celebrating his "win," while all the other racers whizzed past him.
The video above shows the unfortunate celebration for a while, and then the director switches to the rest of the racers who completed the final lap.