Across the UFC record, the decision rate is highest under Jerin Valel at 57% (91 fights) and lowest under John McCarthy at 33% (621 fights).
| Referee | Decision rate | Decisions | Fights |
|---|---|---|---|
| Herb Dean | 43% | 533 | 1,232 |
| John McCarthy | 33% | 207 | 621 |
| Marc Goddard | 49% | 298 | 605 |
| Dan Miragliotta | 44% | 214 | 491 |
| Jason Herzog | 49% | 226 | 464 |
| Mark Smith | 49% | 215 | 437 |
| Chris Tognoni | 50% | 219 | 436 |
| Keith Peterson | 54% | 212 | 391 |
| Mario Yamasaki | 42% | 162 | 388 |
| Yves Lavigne | 49% | 130 | 264 |
| Mike Beltran | 48% | 96 | 200 |
| Steve Mazzagatti | 38% | 76 | 199 |
| Leon Roberts | 53% | 103 | 193 |
| Kerry Hatley | 49% | 82 | 166 |
| Josh Rosenthal | 51% | 61 | 120 |
| Kevin MacDonald | 45% | 49 | 109 |
| Jerin Valel | 57% | 52 | 91 |
| Steve Perceval | 49% | 44 | 90 |
| Jacob Montalvo | 53% | 41 | 78 |
| John Sharp | 50% | 38 | 76 |
| Rich Mitchell | 53% | 40 | 76 |
| Lukasz Bosacki | 52% | 38 | 73 |
| Kevin Mulhall | 52% | 31 | 60 |
| Blake Grice | 54% | 31 | 57 |
| Osiris Maia | 39% | 22 | 56 |
| Daniel Movahedi | 56% | 31 | 55 |
| Gary Copeland | 39% | 20 | 51 |
| Kevin Sataki | 48% | 23 | 48 |
| Neil Hall | 52% | 23 | 44 |
| Kim Winslow | 48% | 20 | 42 |