In celebration of the milestone, the Zuffa-owned mixed martial arts (MMA) promotion is rolling out its Top 20 knockouts of all time.
From Vitor Belfort's 44-second knockout of Wanderlei Silva in 1998 to Anderson Silva's highlight-reel front kick "KO" of "The Phenom" at UFC 126 to Rashad Evans' upset of Chuck Liddell at UFC 88, fans are sure to find one of their favorite moments in the eight-minute, action-packed video above.
Here is the full list from UFC.com:
20. Vitor Belfort defeats Wanderlei Silva
19. Renan Barao stops Eddie Wineland
18. Yves Edwards edges Josh Thomson
17. Rashad Evans stuns Sean Salmon
16. B.J. Penn keeps rolling against Caol Uno
15. Travis Browne takes down Alistair Overeem
14. Quinton Jackson and Wanderlei Silva complete the trilogy
13. Pete Williams finishes Mark Coleman
12. Lyoto Machida knocks out Randy Couture
11. Rashad Evans takes down Chuck Liddell in Atlanta
10. Chuck Liddell drops Tito Ortiz
9. Rich Franklin stops Nate Quarry
8. Maurico Rua stuns Lyoto Machida
7. Matt Hughes downs Carlos Newton
6. Chuck Liddell knocks out Randy Couture
5. Dan Henderson finishes Michael Bisping
4. Gabriel Gonzaga ‘Cro Cops' Mirko Filipovic
3. Edson Barboza rolls past Terry Etim
1B. Chris Weidman shocks Anderson Silva
1A. Anderson Silva stops Vitor Belfort
Is there a sensational finish that didn't make the cut in that should have been on there?
Sound off in the comments section below!