In 1994–2000, 70% of UFC fights ended in the first round. In 2020–2026 it is 25%. The high is 70% in 1994–2000; the low 25% in 2013–2019.
| Era | R1 finish rate | First-round finishes | Fights |
|---|---|---|---|
| 1994–2000 | 70% | 168 | 240 |
| 2001–2005 | 40% | 100 | 248 |
| 2006–2012 | 31% | 508 | 1,619 |
| 2013–2019 | 25% | 818 | 3,238 |
| 2020–2026 | 25% | 869 | 3,415 |