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FightIQ · UFC stats · UFC decision rate by referee

UFC decision rate by referee

Across the UFC record, the decision rate is highest under Blake Grice at 57% (54 fights) and lowest under John McCarthy at 33% (621 fights).

How often a UFC fight goes the distance and is scored by the judges.
Computed from 7,178 fights · 30 referees · updated 20 September 2026
Decision rate by referee30 bars. Highest: Blake Grice at 57% from 54 fights. The table below carries every value.Herb DeanHerb Dean: 43% (1,223 fights)43%John McCarthyJohn McCarthy: 33% (621 fights)33%Marc GoddardMarc Goddard: 50% (599 fights)50%Dan MiragliottaDan Miragliotta: 44% (491 fights)44%Jason HerzogJason Herzog: 49% (455 fights)49%Mark SmithMark Smith: 49% (437 fights)49%Chris TognoniChris Tognoni: 50% (434 fights)50%Keith PetersonKeith Peterson: 54% (391 fights)54%Mario YamasakiMario Yamasaki: 42% (388 fights)42%Yves LavigneYves Lavigne: 49% (264 fights)49%Steve MazzagattiSteve Mazzagatti: 38% (199 fights)38%Mike BeltranMike Beltran: 48% (197 fights)48%Leon RobertsLeon Roberts: 53% (193 fights)53%Kerry HatleyKerry Hatley: 49% (163 fights)49%Josh RosenthalJosh Rosenthal: 51% (120 fights)51%Kevin MacDonaldKevin MacDonald: 45% (109 fights)45%Jerin ValelJerin Valel: 57% (91 fights)57%Steve PercevalSteve Perceval: 49% (90 fights)49%Jacob MontalvoJacob Montalvo: 53% (78 fights)53%John SharpJohn Sharp: 50% (76 fights)50%Rich MitchellRich Mitchell: 53% (76 fights)53%Lukasz BosackiLukasz Bosacki: 52% (73 fights)52%Kevin MulhallKevin Mulhall: 52% (60 fights)52%Osiris MaiaOsiris Maia: 39% (56 fights)39%Daniel MovahediDaniel Movahedi: 56% (55 fights)56%Blake GriceBlake Grice: 57% (54 fights)57%Gary CopelandGary Copeland: 39% (51 fights)39%Kevin SatakiKevin Sataki: 48% (48 fights)48%Neil HallNeil Hall: 52% (44 fights)52%Kim WinslowKim Winslow: 48% (42 fights)48%
Decision rate by referee · every value is in the table below, with the number of fights behind it.
RefereeDecision rateDecisionsFights
Herb Dean43%5321,223
John McCarthy33%207621
Marc Goddard50%297599
Dan Miragliotta44%214491
Jason Herzog49%224455
Mark Smith49%215437
Chris Tognoni50%219434
Keith Peterson54%212391
Mario Yamasaki42%162388
Yves Lavigne49%130264
Steve Mazzagatti38%76199
Mike Beltran48%95197
Leon Roberts53%103193
Kerry Hatley49%80163
Josh Rosenthal51%61120
Kevin MacDonald45%49109
Jerin Valel57%5291
Steve Perceval49%4490
Jacob Montalvo53%4178
John Sharp50%3876
Rich Mitchell53%4076
Lukasz Bosacki52%3873
Kevin Mulhall52%3160
Osiris Maia39%2256
Daniel Movahedi56%3155
Blake Grice57%3154
Gary Copeland39%2051
Kevin Sataki48%2348
Neil Hall52%2344
Kim Winslow48%2042
What counts. A decision is any bout the official record scores — unanimous, split or majority. A fight is a UFC bout on the official record with a result. Draws, no-contests and overturned results are excluded from every count on this page; disqualifications and could-not-continues are counted as fights, which is why the knockout, submission and decision shares do not add up to 100%. How this table is cut. The 30 referees with the most UFC bouts on the official record. A referee does not choose the assignments, so these are differences in the fights each one was given as much as in how each one calls them. 1,545 fights are outside this table. They were officiated by somebody outside those 30, or carry no referee on the record. They are not missing from our record — they are on the year-by-year archive like every other bout; there is simply no row here for them to sit in. Check us. Every number here is recomputed from the official UFC statistical record on each build — nothing on this page is typed in by hand. Search every fight to filter the same record yourself, or start from the year-by-year archive.
Decision rate — cut another way
Other UFC stat answers