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FightIQ · UFC stats · UFC finish rate by referee

UFC finish rate by referee

38 UFC referees have worked 30 or more fights on the official record, 7,638 fights between them, and this page lists them by fights officiated, not by rate. Herb Dean has worked the most, 1,258; under Herb Dean, 57% of UFC fights ended inside the distance.

How often a UFC fight ends before the final bell — knockouts and submissions together.
Computed from 7,638 fights · 38 referees · updated 20 October 2026
Finish rate by referee38 bars, one per referee, in order of fights officiated, most first. Grey bars rest on fewer than 100 fights. The table below carries every value.Herb DeanHerb Dean: 57% (1,258 fights)57%John McCarthyJohn McCarthy: 66% (622 fights)66%Marc GoddardMarc Goddard: 51% (622 fights)51%Dan MiragliottaDan Miragliotta: 56% (498 fights)56%Jason HerzogJason Herzog: 51% (485 fights)51%Mark SmithMark Smith: 50% (460 fights)50%Chris TognoniChris Tognoni: 50% (459 fights)50%Keith PetersonKeith Peterson: 46% (405 fights)46%Mario YamasakiMario Yamasaki: 57% (388 fights)57%Yves LavigneYves Lavigne: 51% (264 fights)51%Mike BeltranMike Beltran: 51% (210 fights)51%Steve MazzagattiSteve Mazzagatti: 61% (199 fights)61%Leon RobertsLeon Roberts: 47% (193 fights)47%Kerry HatleyKerry Hatley: 50% (166 fights)50%Josh RosenthalJosh Rosenthal: 49% (120 fights)49%Kevin MacDonaldKevin MacDonald: 55% (109 fights)55%Jerin ValelJerin Valel: 43% (93 fights)43%Steve PercevalSteve Perceval: 51% (90 fights)51%Jacob MontalvoJacob Montalvo: 47% (79 fights)47%John SharpJohn Sharp: 49% (76 fights)49%Rich MitchellRich Mitchell: 47% (76 fights)47%Lukasz BosackiLukasz Bosacki: 48% (73 fights)48%Kevin MulhallKevin Mulhall: 48% (60 fights)48%Daniel MovahediDaniel Movahedi: 44% (59 fights)44%Blake GriceBlake Grice: 44% (57 fights)44%Osiris MaiaOsiris Maia: 61% (56 fights)61%Gary CopelandGary Copeland: 61% (51 fights)61%Kevin SatakiKevin Sataki: 52% (48 fights)52%Todd Ronald AndersonTodd Ronald Anderson: 47% (45 fights)47%Neil HallNeil Hall: 48% (44 fights)48%Kim WinslowKim Winslow: 52% (42 fights)52%Greg KleynjansGreg Kleynjans: 46% (39 fights)46%Larry LandlessLarry Landless: 65% (37 fights)65%Jim PerdiosJim Perdios: 50% (32 fights)50%Eduardo HerdyEduardo Herdy: 61% (31 fights)61%Fernando PortellaFernando Portella: 55% (31 fights)55%Vitor RibeiroVitor Ribeiro: 48% (31 fights)48%Grant WatermanGrant Waterman: 50% (30 fights)50%
Finish rate by referee · every value is in the table below, with the number of fights behind it.
RefereeFinish rateFinishesFights
Herb Dean57%7121,258
John McCarthy66%413622
Marc Goddard51%315622
Dan Miragliotta56%280498
Jason Herzog51%247485
Mark Smith50%230460
Chris Tognoni50%228459
Keith Peterson46%186405
Mario Yamasaki57%223388
Yves Lavigne51%134264
Mike Beltran51%107210
Steve Mazzagatti61%121199
Leon Roberts47%90193
Kerry Hatley50%83166
Josh Rosenthal49%59120
Kevin MacDonald55%60109
Jerin Valelsmall sample43%4093
Steve Percevalsmall sample51%4690
Jacob Montalvosmall sample47%3779
John Sharpsmall sample49%3776
Rich Mitchellsmall sample47%3676
Lukasz Bosackismall sample48%3573
Kevin Mulhallsmall sample48%2960
Daniel Movahedismall sample44%2659
Blake Gricesmall sample44%2557
Osiris Maiasmall sample61%3456
Gary Copelandsmall sample61%3151
Kevin Satakismall sample52%2548
Todd Ronald Andersonsmall sample47%2145
Neil Hallsmall sample48%2144
Kim Winslowsmall sample52%2242
Greg Kleynjanssmall sample46%1839
Larry Landlesssmall sample65%2437
Jim Perdiossmall sample50%1632
Eduardo Herdysmall sample61%1931
Fernando Portellasmall sample55%1731
Vitor Ribeirosmall sample48%1531
Grant Watermansmall sample50%1530
What counts. A finish is a knockout (KO/TKO, including a doctor’s stoppage) or a submission. 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. Every referee with at least 30 UFC bouts on the official record, listed by fights officiated, most first. This is a list, not a ranking. 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. Small samples. Referees with fewer than 100 fights officiated are greyed and marked small sample. They are shown, not dropped. 1,135 fights are outside this table. They were officiated by a referee with fewer than 30 fights on the record, 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.
Finish rate — cut another way
Other UFC stat answers