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Refereed by Herb Dean

Professional mixed martial arts referee Herb Dean is one of the most experienced and respected officials in the business. He has been third man in the cage for over 3500 professional MMA bouts, including more than 200 bouts in the Ultimate Fighting Championship, for which he has officiated matches since 2004. UFC President Dana White has publicly stated on more than one occasion that he believes Herb Dean is the best ref in MMA.

In addition to his primary role as an officiator, Dean is also an occasional MMA combatant. He fought his most notable opponent, Joe Riggs, in 2003, losing to strikes in the first round, but Dean also sports a submission victory and a TKO victory to his credit. Dean is a Brazilian Jiu-Jitsu black belt and an expert in both Karate and Judo.

Like any referee in the business long enough, and despite a generally stellar reputation, Dean has not stayed entirely free of criticism. His stoppage of the UFC 61 rematch between Tito Ortiz and Ken Shamrock due to unanswered elbows on the ground was criticized as premature by many fans, as well as Shamrock himself. Though the camera replays clearly show Shamrock briefly go limp from the blows, and Ortiz attested to seeing and feeling the same thing, the popular groundswell for a "do over" was strong enough that the two met again six months later in December of 2006. With "Big" John McCarthy this time presiding, Ortiz finished Shamrock with strikes on the ground in round one yet again.

One of Dean's best moments as a ref came in his first ever UFC championship fight, the 2004 Heavyweight Championship matchup between Frank Mir and Tim Sylvia at UFC 48: Payback. Dean astutely, and decisively, stepped in to call a stop to the action at the 0:50 mark of the first round after witnessing an armbar by Mir snap Sylvia's forearm in two. Following an initial showering of boos Dean was vindicated moments later when the audience witnessed the breakage on the jumbo replay. Sylvia, who angrily protested at first, also came to thank Dean for prolonging his career and saving him from any further damage. Dean has gone on to referee countless other championship matchups, including Brock Lesnar vs. Frank Mir II at UFC 100, Lyoto Machida vs. "Shogun" Rua I, and Randy Couture vs. Gabe Gonzaga at UFC 74. Dean currently resides in Pasadena, California and continues to regularly officiate top matchups for the UFC, Strikeforce and other promotions.

Portions of this article draw on information contained on Herb Dean's official website, www.herbdean.com.

Refereed by Herb Dean

Bout   Event   Date   Org
Nate Diaz vs. Leon Edwards UFC 263 2021.06.12
Chase Hooper vs. Steven Peterson UFC 263 2021.06.12
Lauren Murphy vs. Joanne Calderwood UFC 263 2021.06.12
Tanner Boser vs. Ilir Latifi UFC Fight Night 2021.06.05
Augusto Sakai vs. Jairzinho Rozenstruik UFC Fight Night 2021.06.05
Miguel Baeza vs. Santiago Ponzinibbio UFC Fight Night 2021.06.05
Manon Fiorot vs. Tabatha Ricci UFC Fight Night 2021.06.05
Jack Hermansson vs. Edmen Shahbazyan UFC Fight Night 2021.05.22
Shayilan Nuerdanbieke vs. Joshua Culibao UFC Fight Night 2021.05.22
Rob Font vs. Cody Garbrandt UFC Fight Night 2021.05.22
Mike Trizano vs. Ľudovít Klein UFC Fight Night 2021.05.08
Marina Rodriguez vs. Michelle Waterson UFC Fight Night 2021.05.08
Marcos Rogério de Lima vs. Maurice Greene UFC Fight Night 2021.05.08
Jiří Procházka vs. Dominick Reyes UFC Fight Night 2021.05.01
Poliana Botelho vs. Luana Carolina UFC Fight Night 2021.05.01
Krzysztof Jotko vs. Sean Strickland UFC Fight Night 2021.05.01
Chris Weidman vs. Uriah Hall II UFC 261 2021.04.24
Jorge Masvidal vs. Kamaru Usman II UFC 261 2021.04.24
Kevin Natividad vs. Danaa Batgerel UFC 261 2021.04.24
Alex Munoz vs. Luis Pena UFC Fight Night 2021.04.17
Robert Whittaker vs. Kelvin Gastelum UFC Fight Night 2021.04.17
Gerald Meerschaert vs. Bartosz Fabiński UFC Fight Night 2021.04.17
Kevin Holland vs. Marvin Vettori UFC on ABC 2 2021.04.10
Jim Miller vs. Joe Solecki UFC on ABC 2 2021.04.10
Jack Shore vs. Hunter Azure UFC on ABC 2 2021.04.10
Alonzo Menifield vs. Fabio Cherant UFC 260 2021.03.27
Stipe Miocic vs. Francis N'Gannou II UFC 260 2021.03.27
Derek Brunson vs. Kevin Holland UFC Fight Night 2021.03.20
Roman Dolidze vs. Trevin Giles UFC Fight Night 2021.03.20
Tai Tuivasa vs. Harry Hunsucker UFC Fight Night 2021.03.20
Rani Yahya vs. Ray Rodriguez UFC Fight Night 2021.03.13
Eryk Anders vs. Darren Stewart UFC Fight Night 2021.03.13
Kai Kara-France vs. Rogério Bontorin UFC 259 2021.03.06
Jan Błachowicz vs. Israel Adesanya UFC 259 2021.03.06
Thiago Santos vs. Aleksandar Rakić UFC 259 2021.03.06
Carlos Ulberg vs. Kennedy Nzechukwu UFC 259 2021.03.06
Pedro Munhoz vs. Jimmie Rivera II UFC Fight Night 2021.02.27
Jairzinho Rozenstruik vs. Ciryl Gane UFC Fight Night 2021.02.27
Jared Gordon vs. Danny Chavez UFC Fight Night 2021.02.20
Aleksei Oleinik vs. Chris Daukaus UFC Fight Night 2021.02.20
Curtis Blaydes vs. Derrick Lewis UFC Fight Night 2021.02.20
Dhiego Lima vs. Belal Muhammad UFC 258 2021.02.13
Kamaru Usman vs. Gilbert Burns UFC 258 2021.02.13
Dustin Poirier vs. Conor McGregor II UFC 257 2021.01.23
Marina Rodriguez vs. Amanda Ribas UFC 257 2021.01.23
Marcin Prachnio vs. Khalil Rountree UFC 257 2021.01.23
Matt Schnell vs. Tyson Nam UFC Fight Night 2021.01.20
Dalcha Lungiambula vs. Markus Perez UFC Fight Night 2021.01.20
Warlley Alves vs. Mounir Lazzez UFC Fight Night 2021.01.20
Max Holloway vs. Calvin Kattar UFC on ABC 1 2021.01.16
Carlos Felipe vs. Justin Tafa UFC on ABC 1 2021.01.16
Duško Todorović vs. Punahele Soriano UFC on ABC 1 2021.01.16
John Allan vs. Roman Dolidze UFC Fight Night 2020.12.05
Jack Hermansson vs. Marvin Vettori UFC Fight Night 2020.12.05
Anthony Smith vs. Devin Clark UFC Fight Night 2020.11.28
Spike Carlyle vs. Bill Algeo UFC Fight Night 2020.11.28
Anderson dos Santos vs. Martin Day UFC Fight Night 2020.11.28
Levan Makashvili vs. Aurel Pîrtea ACA 114 2020.11.26
Łukasz Kopera vs. Michael Johann Rirsch ACA 114 2020.11.26
Daniel James vs. Michal Martínek ACA 114 2020.11.26
Daniel Omielańczuk vs. Tony Johnson Jr. ACA 114 2020.11.26
Rene Pessoa vs. Bartosz Leśko ACA 114 2020.11.26
Cory Hendricks vs. Carlos Eduardo ACA 114 2020.11.26
Krystian Bielski vs. Kamil Oniszczuk ACA 114 2020.11.26
Jordan Wright vs. Joaquin Buckley UFC 255 2020.11.21
Valentina Shevchenko vs. Jennifer Maia UFC 255 2020.11.21
Paul Craig vs. Maurício Rua II UFC 255 2020.11.21
Brendan Allen vs. Sean Strickland UFC Fight Night 2020.11.14
Rafael dos Anjos vs. Paul Felder UFC Fight Night 2020.11.14
Guilherme Faria vs. Andre Soukhamthath XFC 43 2020.11.11
Steven Newell vs. Carson Hardman XFC 43 2020.11.11
Alex Sanchez vs. LaRue Burley XFC 43 2020.11.11
Joziro Boye vs. Kurt Holobaugh XFC 43 2020.11.11
Alexander Romanov vs. Marcos Rogério de Lima UFC Fight Night 2020.11.07
Glover Teixeira vs. Thiago Santos UFC Fight Night 2020.11.07
Jamey Simmons vs. Giga Chikadze UFC Fight Night 2020.11.07
Carlos Ulberg vs. Bruno Oliveira Contender Series 2020 2020.11.04
Vince Murdock vs. Luis Saldaña Contender Series 2020 2020.11.04
Maurice Greene vs. Greg Hardy UFC Fight Night 2020.10.31
Victor Rodriguez vs. Adrian Yanez UFC Fight Night 2020.10.31
Uriah Hall vs. Anderson Silva UFC Fight Night 2020.10.31
Brok Weaver vs. Jalin Turner UFC Fight Night 2020.09.12
Bobby Green vs. Alan Patrick UFC Fight Night 2020.09.12
Khama Worthy vs. Ottman Azaitar UFC Fight Night 2020.09.12
Brian Kelleher vs. Ray Rodriguez UFC Fight Night 2020.09.05
Alistair Overeem vs. Augusto Sakai UFC Fight Night 2020.09.05
Jimmy Flick vs. Nate Smith Contender Series 2020 2020.09.01
Cody Brundage vs. William Knight Contender Series 2020 2020.09.01
Sean Brady vs. Christian Aguilera UFC Fight Night 2020.08.29
Aleksandar Rakić vs. Anthony Smith UFC Fight Night 2020.08.29
Mike Breeden vs. Anthony Romero Contender Series 2020 2020.08.25
Alejandro Flores vs. Rafael Alves Contender Series 2020 2020.08.25
Pedro Munhoz vs. Frankie Edgar UFC Fight Night 2020.08.22
Austin Hubbard vs. Joe Solecki UFC Fight Night 2020.08.22
Marlon Vera vs. Sean O'Malley UFC 252 2020.08.15
Vinc Pichel vs. Jim Miller UFC 252 2020.08.15
Chris Daukaus vs. Parker Porter UFC 252 2020.08.15
Derrick Lewis vs. Aleksei Oleinik UFC Fight Night 2020.08.08
Wellington Turman vs. Andrew Sanchez UFC Fight Night 2020.08.08
Beneil Dariush vs. Scott Holtzman UFC Fight Night 2020.08.08
Ty Flores vs. Dustin Jacoby Contender Series 2020 2020.08.04
Jerome Rivera vs. Luis Rodríguez Contender Series 2020 2020.08.04
Lando Vannata vs. Bobby Green II UFC Fight Night 2020.08.01
Edmen Shahbazyan vs. Derek Brunson UFC Fight Night 2020.08.01
Francisco Trinaldo vs. Jai Herbert UFC Fight Night 2020.07.25
Raphael Pessoa vs. Tanner Boser UFC Fight Night 2020.07.25
Robert Whittaker vs. Darren Till UFC Fight Night 2020.07.25
Alexander Gustafsson vs. Fabrício Werdum UFC Fight Night 2020.07.25
Khadis Ibragimov vs. Roman Dolidze UFC Fight Night 2020.07.18
Jack Hermansson vs. Kelvin Gastelum UFC Fight Night 2020.07.18
Malcolm Gordon vs. Amir Albazi UFC Fight Night 2020.07.18
Dan Ige vs. Calvin Kattar UFC Fight Night 2020.07.15
Khamzat Chimaev vs. John Phillips UFC Fight Night 2020.07.15
Aaron Phillips vs. Jack Shore UFC Fight Night 2020.07.15
Maxim Grishin vs. Marcin Tybura UFC 251 2020.07.11
Alexander Volkanovski vs. Max Holloway II UFC 251 2020.07.11
Elizeu Zaleski vs. Muslim Salikhov UFC 251 2020.07.11
Jordan Griffin vs. Youssef Zalal UFC Fight Night 2020.06.27
Dustin Poirier vs. Dan Hooker UFC Fight Night 2020.06.27
Tanner Boser vs. Philipe Lins UFC Fight Night 2020.06.27
Roosevelt Roberts vs. Jim Miller UFC Fight Night 2020.06.20
Justin Jaynes vs. Frank Camacho UFC Fight Night 2020.06.20
Alexander Volkov vs. Curtis Blaydes UFC Fight Night 2020.06.20
Tyson Nam vs. Zarrukh Adashev UFC Fight Night 2020.06.13
Jessica Eye vs. Cynthia Calvillo UFC Fight Night 2020.06.13
Jordan Espinosa vs. Mark De La Rosa UFC Fight Night 2020.06.13
Charles Byrd vs. Maki Pitolo UFC 250 2020.06.06
Amanda Nunes vs. Felicia Spencer UFC 250 2020.06.06
Eddie Wineland vs. Sean O'Malley UFC 250 2020.06.06
Roosevelt Roberts vs. Brok Weaver UFC Fight Night 2020.05.30
Jamahal Hill vs. Klidson Abreu UFC Fight Night 2020.05.30
Tyron Woodley vs. Gilbert Burns UFC Fight Night 2020.05.30
Eryk Anders vs. Krzysztof Jotko UFC Fight Night 2020.05.16
Darren Elkins vs. Nate Landwehr UFC Fight Night 2020.05.16
Alexander Hernandez vs. Drew Dober UFC Fight Night 2020.05.13
Andrei Arlovski vs. Philipe Lins UFC Fight Night 2020.05.13
Aleksei Oleinik vs. Fabrício Werdum UFC 249 2020.05.09
Greg Hardy vs. Yorgan De Castro UFC 249 2020.05.09
Justin Gaethje vs. Tony Ferguson UFC 249 2020.05.09
Mukhamed Kokov vs. Viskhan Magomadov ACA 104 2020.02.21
Shanna Young vs. Macy Chiasson UFC on ESPN+ 25 2020.02.15
Jan Błachowicz vs. Corey Anderson II UFC on ESPN+ 25 2020.02.15
Ray Borg vs. Rogério Bontorin UFC on ESPN+ 25 2020.02.15
Tim Means vs. Daniel Rodriguez UFC on ESPN+ 25 2020.02.15
Anthony Pettis vs. Diego Ferreira UFC 246 2020.01.18
Aleksa Camur vs. Justin Ledet UFC 246 2020.01.18
Donald Cerrone vs. Conor McGregor UFC 246 2020.01.18
Yusuf Raisov vs. Raimundo Batista ACA 103 2019.12.14
Andrey Goncharov vs. Rustam Taldiev ACA 103 2019.12.14
Marat Balaev vs. Diego Brandão ACA 103 2019.12.14

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