Fastest Finishes in UFC History
The quickest knockouts and submissions ever — ranked by the clock
2026 · All-Time
⚡ About the Fastest Finishes
This leaderboard ranks the quickest stoppages in UFC history — the blink-and-you-miss-it knockouts and submissions where the fight was over almost before it began. Every finish is scored by total elapsed time, combining the round it ended in with the clock, so a first-round flash knockout and a rare fast finish deeper in a bout sit on the same honest scale. Red marks a striking finish (KO/TKO); purple marks a submission.
Speed like this is the rawest form of highlight-reel violence, but it tells a real story too — elite timing, fight-ending power, and the willingness to swing for the finish from the opening bell. Pair this with our most finishes, highest KO rate and first-round finishers pages to see who ends fights not just fastest, but most often.