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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
Jan Błachowicz vs. Israel Adesanya UFC 259 2021.03.06
Aleksandar Rakić vs. Thiago Santos UFC 259 2021.03.06
Kai Kara-France vs. Rogério Bontorin UFC 259 2021.03.06
Kennedy Nzechukwu vs. Carlos Ulberg UFC 259 2021.03.06
Jairzinho Rozenstruik vs. Ciryl Gane UFC Fight Night 2021.02.27
Pedro Munhoz vs. Jimmie Rivera II UFC Fight Night 2021.02.27
Derrick Lewis vs. Curtis Blaydes UFC Fight Night 2021.02.20
Jared Gordon vs. Danny Chavez UFC Fight Night 2021.02.20
Chris Daukaus vs. Aleksei Oleinik 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
Conor McGregor vs. Dustin Poirier II UFC 257 2021.01.23
Marcin Prachnio vs. Khalil Rountree UFC 257 2021.01.23
Marina Rodriguez vs. Amanda Ribas UFC 257 2021.01.23
Tyson Nam vs. Matt Schnell UFC Fight Night 2021.01.20
Markus Perez vs. Dalcha Lungiambula UFC Fight Night 2021.01.20
Warlley Alves vs. Mounir Lazzez UFC Fight Night 2021.01.20
Duško Todorović vs. Punahele Soriano UFC on ABC 1 2021.01.16
Justin Tafa vs. Carlos Felipe UFC on ABC 1 2021.01.16
Max Holloway vs. Calvin Kattar UFC on ABC 1 2021.01.16
Jack Hermansson vs. Marvin Vettori UFC Fight Night 2020.12.05
Roman Dolidze vs. John Allan UFC Fight Night 2020.12.05
Bill Algeo vs. Spike Carlyle UFC Fight Night 2020.11.28
Anderson dos Santos vs. Martin Day UFC Fight Night 2020.11.28
Devin Clark vs. Anthony Smith UFC Fight Night 2020.11.28
Carlos Eduardo vs. Cory Hendricks ACA 114 2020.11.26
Kamil Oniszczuk vs. Krystian Bielski ACA 114 2020.11.26
Bartosz Leśko vs. Rene Pessoa ACA 114 2020.11.26
Aurel Pîrtea vs. Levan Makashvili 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
Paul Craig vs. Maurício Rua II UFC 255 2020.11.21
Valentina Shevchenko vs. Jennifer Maia UFC 255 2020.11.21
Jordan Wright vs. Joaquin Buckley UFC 255 2020.11.21
Rafael dos Anjos vs. Paul Felder UFC Fight Night 2020.11.14
Sean Strickland vs. Brendan Allen UFC Fight Night 2020.11.14
Steven Newell vs. Carson Hardman XFC 43 2020.11.11
Joziro Boye vs. Kurt Holobaugh XFC 43 2020.11.11
Alex Sanchez vs. LaRue Burley XFC 43 2020.11.11
Andre Soukhamthath vs. Guilherme Faria XFC 43 2020.11.11
Jamey Simmons vs. Giga Chikadze UFC Fight Night 2020.11.07
Marcos Rogério de Lima vs. Alexander Romanov UFC Fight Night 2020.11.07
Thiago Santos vs. Glover Teixeira UFC Fight Night 2020.11.07
Bruno Oliveira vs. Carlos Ulberg Contender Series 2020 2020.11.04
Vince Murdock vs. Luis Saldaña Contender Series 2020 2020.11.04
Uriah Hall vs. Anderson Silva UFC Fight Night 2020.10.31
Adrian Yanez vs. Victor Rodriguez UFC Fight Night 2020.10.31
Greg Hardy vs. Maurice Greene UFC Fight Night 2020.10.31
Ottman Azaitar vs. Khama Worthy UFC Fight Night 2020.09.12
Brok Weaver vs. Jalin Turner UFC Fight Night 2020.09.12
Alan Patrick vs. Bobby Green UFC Fight Night 2020.09.12
Ray Rodriguez vs. Brian Kelleher 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
William Knight vs. Cody Brundage Contender Series 2020 2020.09.01
Aleksandar Rakić vs. Anthony Smith UFC Fight Night 2020.08.29
Christian Aguilera vs. Sean Brady UFC Fight Night 2020.08.29
Anthony Romero vs. Mike Breeden 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
Joe Solecki vs. Austin Hubbard UFC Fight Night 2020.08.22
Chris Daukaus vs. Parker Porter UFC 252 2020.08.15
Marlon Vera vs. Sean O'Malley UFC 252 2020.08.15
Vinc Pichel vs. Jim Miller UFC 252 2020.08.15
Scott Holtzman vs. Beneil Dariush UFC Fight Night 2020.08.08
Aleksei Oleinik vs. Derrick Lewis UFC Fight Night 2020.08.08
Andrew Sanchez vs. Wellington Turman UFC Fight Night 2020.08.08
Luis Rodríguez vs. Jerome Rivera Contender Series 2020 2020.08.04
Dustin Jacoby vs. Ty Flores Contender Series 2020 2020.08.04
Bobby Green vs. Lando Vannata II UFC Fight Night 2020.08.01
Derek Brunson vs. Edmen Shahbazyan UFC Fight Night 2020.08.01
Darren Till vs. Robert Whittaker UFC Fight Night 2020.07.25
Alexander Gustafsson vs. Fabrício Werdum UFC Fight Night 2020.07.25
Raphael Pessoa vs. Tanner Boser UFC Fight Night 2020.07.25
Jai Herbert vs. Francisco Trinaldo UFC Fight Night 2020.07.25
Jack Hermansson vs. Kelvin Gastelum UFC Fight Night 2020.07.18
Malcolm Gordon vs. Amir Albazi UFC Fight Night 2020.07.18
Khadis Ibragimov vs. Roman Dolidze UFC Fight Night 2020.07.18
John Phillips vs. Khamzat Chimaev UFC Fight Night 2020.07.15
Jack Shore vs. Aaron Phillips UFC Fight Night 2020.07.15
Calvin Kattar vs. Dan Ige UFC Fight Night 2020.07.15
Muslim Salikhov vs. Elizeu Zaleski UFC 251 2020.07.11
Alexander Volkanovski vs. Max Holloway II UFC 251 2020.07.11
Maxim Grishin vs. Marcin Tybura UFC 251 2020.07.11
Philipe Lins vs. Tanner Boser UFC Fight Night 2020.06.27
Jordan Griffin vs. Youssef Zalal UFC Fight Night 2020.06.27
Dustin Poirier vs. Dan Hooker UFC Fight Night 2020.06.27
Justin Jaynes vs. Frank Camacho UFC Fight Night 2020.06.20
Jim Miller vs. Roosevelt Roberts UFC Fight Night 2020.06.20
Curtis Blaydes vs. Alexander Volkov UFC Fight Night 2020.06.20
Jessica Eye vs. Cynthia Calvillo UFC Fight Night 2020.06.13
Tyson Nam vs. Zarrukh Adashev UFC Fight Night 2020.06.13
Jordan Espinosa vs. Mark De La Rosa UFC Fight Night 2020.06.13
Felicia Spencer vs. Amanda Nunes UFC 250 2020.06.06
Eddie Wineland vs. Sean O'Malley UFC 250 2020.06.06
Charles Byrd vs. Maki Pitolo UFC 250 2020.06.06
Jamahal Hill vs. Klidson Abreu UFC Fight Night 2020.05.30
Roosevelt Roberts vs. Brok Weaver UFC Fight Night 2020.05.30
Tyron Woodley vs. Gilbert Burns UFC Fight Night 2020.05.30
Darren Elkins vs. Nate Landwehr UFC Fight Night 2020.05.16
Eryk Anders vs. Krzysztof Jotko 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
Yorgan De Castro vs. Greg Hardy UFC 249 2020.05.09
Tony Ferguson vs. Justin Gaethje UFC 249 2020.05.09
Aleksei Oleinik vs. Fabrício Werdum UFC 249 2020.05.09
Viskhan Magomadov vs. Mukhamed Kokov ACA 104 2020.02.21
Macy Chiasson vs. Shanna Young UFC on ESPN+ 25 2020.02.15
Tim Means vs. Daniel Rodriguez UFC on ESPN+ 25 2020.02.15
Corey Anderson vs. Jan Błachowicz II UFC on ESPN+ 25 2020.02.15
Ray Borg vs. Rogério Bontorin UFC on ESPN+ 25 2020.02.15
Justin Ledet vs. Aleksa Camur UFC 246 2020.01.18
Donald Cerrone vs. Conor McGregor UFC 246 2020.01.18
Anthony Pettis vs. Diego Ferreira UFC 246 2020.01.18
Raimundo Batista vs. Yusuf Raisov ACA 103 2019.12.14
Marat Balaev vs. Diego Brandão ACA 103 2019.12.14
Alexey Efremov vs. Brett Cooper ACA 103 2019.12.14
Alexey Shaposhnikov vs. Goga Shamatava ACA 103 2019.12.14
Andrey Goncharov vs. Rustam Taldiev ACA 103 2019.12.14
Ali Isaev vs. Denis Goltsov PFL 2019 #9 2019.10.31
Bozigit Ataev vs. Emiliano Sordi III PFL 2019 #9 2019.10.31
Mo DeReese vs. Jared Rosholt PFL 2019 #9 2019.10.31
Alex Nicholson vs. Francimar Barroso II PFL 2019 #9 2019.10.31
Maurice Greene vs. Sergey Pavlovich UFC on ESPN+ 20 2019.10.26
Ciryl Gane vs. Don'Tale Mayes UFC on ESPN+ 20 2019.10.26
Ben Askren vs. Demian Maia UFC on ESPN+ 20 2019.10.26
Chris Weidman vs. Dominick Reyes UFC on ESPN 6 2019.10.18
Boston Salmon vs. Randy Costa UFC on ESPN 6 2019.10.18
Joe Lauzon vs. Jonathan Pearce UFC on ESPN 6 2019.10.18
Alex Morono vs. Max Griffin UFC on ESPN+ 19 2019.10.12
Joanna Jędrzejczyk vs. Michelle Waterson UFC on ESPN+ 19 2019.10.12
Marvin Vettori vs. Andrew Sanchez UFC on ESPN+ 19 2019.10.12
Luis Pena vs. Matt Frevola UFC on ESPN+ 19 2019.10.12
Niko Price vs. James Vick UFC on ESPN+ 19 2019.10.12
Beslan Isaev vs. Bekzhod Nurmatov ACA 100 2019.10.04
Ustarmagomed Gadzhidaudov vs. Jesse Taylor ACA 100 2019.10.04
Abubakar Vagaev vs. Fernando Gonzalez ACA 100 2019.10.04
Asylzhan Bakhytzhanuly vs. Alexey Stoyan ACA 100 2019.10.04
Ibragim Chuzhigaev vs. Alex Garcia ACA 99 2019.09.27
Jeremy Stephens vs. Yair Rodriguez UFC on ESPN+ 17 2019.09.21
Steven Peterson vs. Martín Bravo UFC on ESPN+ 17 2019.09.21
Sergio Pettis vs. Tyson Nam UFC on ESPN+ 17 2019.09.21
Diego Ferreira vs. Mairbek Taisumov UFC 242 2019.09.07
Edson Barboza vs. Paul Felder II UFC 242 2019.09.07
Nordine Taleb vs. Muslim Salikhov UFC 242 2019.09.07
Zubaira Tukhugov vs. Lerone Murphy UFC 242 2019.09.07
Felisha Magallan vs. Lupita Godinez Combate 42 2019.08.23
Bruno Cannetti vs. Andrés Quintana II Combate 42 2019.08.23
Ricky Steele vs. Phil Caracappa Contender Series 2019 2019.08.20

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