UFC: Fastest knockouts
The all-time UFC top 100, rebuilt from every completed UFC fight in our database.
Updated September 30, 2026
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A fighter with a bout in the last 18 months. Country boards rank every fighter from that country and cannot be combined with the active filter.
| # | Fighter | Fastest knockouts | Round | Fight | Date |
|---|---|---|---|---|---|
| 1 |   Amanda Nunes | 0:51 | 1 | Cristiane JustinoWomen's Featherweight | Dec 30, 2018 |
| 2 |   Megan Anderson | 1:01 | 1 | Cat ZinganoWomen's Featherweight | Dec 30, 2018 |
| 3 |  Cristiane Justino | 3:25 | 1 | Yana SantosWomen's Featherweight | Mar 3, 2018 |
| 4 | Megan Anderson | 3:31 | 1 | Norma DumontWomen's Featherweight | Mar 1, 2020 |
| 5 |   Felicia Spencer | 3:37 | 1 | Zarah FairnWomen's Featherweight | Mar 1, 2020 |
| 6 | Cristiane Justino | 11:56 | 3 | Tonya EvingerWomen's Featherweight | Jul 30, 2017 |
| 7 | Felicia Spencer | 14:25 | 3 | Leah LetsonWomen's Featherweight | Nov 13, 2021 |
This board ranks single performances, not fighters — one fighter can hold more than one row.