Across the UFC record, fights are longest at Women's Strawweight at 12:39 (376 fights) and shortest at Heavyweight at 8:49 (760 fights).
| Division | Average length | Total time | Fights |
|---|---|---|---|
| Lightweight | 10:31 | 252 hours | 1,438 |
| Welterweight | 10:43 | 247 hours | 1,384 |
| Middleweight | 10:02 | 190 hours | 1,138 |
| Featherweight | 11:10 | 161 hours | 866 |
| Bantamweight | 11:26 | 147 hours | 771 |
| Heavyweight | 8:49 | 112 hours | 760 |
| Light Heavyweight | 9:21 | 116 hours | 747 |
| Flyweight | 11:40 | 82 hours | 422 |
| Women's Strawweight | 12:39 | 79 hours | 376 |
| Women's Flyweight | 12:35 | 58 hours | 277 |
| Women's Bantamweight | 12:19 | 51 hours | 247 |