Does age matter in the UFC?
More than anything else we measure. The younger fighter wins 59% of UFC fights, and when the gap is six years or more, that jumps to 68%. Age is the single strongest factor in our entire fight database, ahead of reach, stance, and even being the betting favorite.
This is the one to internalize. MMA rewards the things that fade first: explosiveness, recovery between exchanges, the reflexes to see a shot coming. A great fighter at 36 is still great, but the version of him at 29 was quicker, and the cage does not grade on a curve.
How often the younger fighter wins, by the size of the age gap. It rises the whole way.
A small age gap barely moves the needle. A big one is close to decisive. The relationship is clean and it points one direction.
The flip side is just as stark. Fighters aged 35 and older win only 39% of their bouts, across 1,185 fights. That is not a gentle decline, it is a losing record. The stories we tell about veteran savvy and ring IQ are real, and they are usually not enough to cover for a step lost.
It also reframes how to read a marquee comeback. When a legend returns at 37 against an elite fighter in his prime, the history is not on his side, no matter how good the camp looked. The clock is undefeated, and it is the first number we look at.
Every number here comes from our own fight database: 3,068 UFC fights since June 2020, scraped from the official statistics and rebuilt nightly. We compute rates across all qualifying fights, never a cherry-picked window. Small splits are noted where they matter. This is descriptive history, not a prediction, and it updates on its own.
Last recomputed July 8, 2026.