Many UFC players settle record of the fastest knockout during their career. Its not an easy job to take down your opponent in just seconds of the match. There are some fighters who shown such skills in the ring and finished the match in less then 10 seconds of the 1st round. We will start with (Duane Ludwig) who wins his fight against opponent Jonathan Goulet in just 6 seconds of the first round on knockout decision.
| Fighter | Opponent | Time Seconds | Event | Division | Finishing |
| Duane Ludwig | Jonathan Goulet | 0:06 | UFC Fight Night 3 | Welterweight | Knockout |
| Todd Duffee | Tim Hague | 0:07 | UFC 102 | Heavyweight | Knockout |
| Chan Sung Jung | Mark Hominick | 0:07 | UFC 140 | Featherweight | Knockout |
| Ryan Jimmo | Anthony Perosh | 0:07 | UFC 149 | Light Heavyweight | Knockout |
| Don Frye | Thomas Ramirez | 0:08 | UFC 8 | Heavyweight | Knockout |
| James Irvin | Houston Alexander | 0:08 | UFC Fight Night 13 | Light Heavyweight | Knockout |
| Leon Edwards | Seth Baczynski | 0:08 | UFC Fight Night 64 | Welterweight | Knockout |
| Makwan Amirkhani | Andy Ogle | 0:08 | UFC on Fox 14 | Featherweight | Knockout |
Duane Ludwig Knockout Jonathan Goulet (0:06) Seconds at UFC Fight Night 3 :
Ludwig breaks the quickest knockout record in 2006 after winning the fight from Goulet in just first 10 seconds of the first round of match. The fight is schedule in the preliminary card of fight night 3.
Todd Duffee Knockout Tim Hague (0:07) Seconds at UFC 102 :
Duffe the heavyweight UFC fighter who finish the fight in just 7 seconds of the match at UFC 102 after defeated Tim Hague. The fight is on preliminary card of UFC 102 he become made his name among the UFC record with such quick finishing technique.
Chan Sung Jung Knockout Mark Hominick (0:07) Seconds at UFC 140 :
In 2011, at UFC 140 main card Chan Sung Jung defeated his opponent Mark Hominick in 7 seconds of the match. With such a fast knockout he made his name (knockout of the night) and also earn $75,000 as bonus for his performance.