10 Fastest UFC Knockouts Of All Time
2. Ryan Jimmo
https://www.youtube.com/watch?v=SX6-_nA0ZIkTime: 7 seconds
Ryan Jimmo entered the UFC after a successful stint in MFC and other organizations. In his debut fight at UFC 149 in 2012, Jimmo quickly connected against Anthony Perosh, and Perosh went down. One follow-up punch and the ref was in there calling off the fight, and Jimmo tied for the fastest UFC knockout in history along with Jung and Duffee... sort of.
See, time keeping isn't always an exact art, and sometimes timekeepers are slow to stop the clock. So while Jimmo, Jung, and Duffee may hold the record as far as athletic commissions are concerned, the UFC itself has given the title of Fastest UFC Knockout to this next guy.