10. UFC 40
Code-named “Vendetta,” UFC 40 was not only one of the promotion’s most exciting events from top to bottom but ranks among its most significant.
The main attraction was the grudge match between light heavyweight champion Tito Ortiz and old-school favorite Ken Shamrock. Unlike most prizefighting rivalries, they genuinely hated each other. Months of trash talk created a groundswell of excitement, and the card was a massive success. When it was over, Ortiz had handed out a hellacious beating and UFC 40 had become the promotion’s first event to draw more than 100,000 pay-per-view buys.
Number 9 » UFC 66