Matt O'Brien W4 Claudio Ortiz, D2728, 18minG/VG

Danny O'Connor KO4 Andrew Farmer, D4168, 22minVG

Sean O'Grady KO3 Romeo Anaya, 25, D1310, 15minVG
Sean O'Grady KO5 Shigefumi 'Shig' Fukuyama, D125, 22minG/VG
Sean O'Grady KOby12 James Watt, D268, 44minVG
Sean O'Grady W15 Hilmer Kenty, D225, 56minG
Sean O'Grady KOby2 Andy Ganigan, D684, 12minVG
Sean O'Grady KOby4 Johnny Verderosa, D962, 19minVG/EX
Sean O'Grady L10 Pete Ranzany, D966, 44minVG
Sean O'Grady W12 Gonzalo Montellano, D2884, 40minG

Kevin O'Hara L8 Choi Tseveenpurev, D144, 39minEX

Martin O'Malley L10 Luis Villalta, D32, 38minEX
Martin O'Malley W8 Luis Lizarraga, D111, 33minEX
Martin O'Malley KOby2 Juan Diaz, D3326, 15minG/VG

Frank O'Neil L4 Kevin Carmody, D1411, 16minEX

Gwendolyn O'Neil KOby3 Laila Ali, D224, 23minEX

Larry O'Shields L6 Floyd Mayweather, Jr., D2135, 24minF (starts in 1st)

Shawn O'Sullivan KOby3 Simon Brown, D3415, 20minVG

Kohei Oba KOby11 Rolly Matsushida, D3088, 42minG
Kohei Oba KOby8 Randy Caballero, D3948, 44minEX

Masao Oba KO12 Chartchai Chionoi, D89, D3147, 42minG/VG
Masao Oba W15 Betulio Gonzalez, D527, 58minG/VG
Masao Oba KO13 Berkrerk Chartvanchai, D849, 54minVG
Masao Oba KO5 Orlando Amores, D1362, D2394, 18mF
Masao Oba W15 Susumu Hanagata II, D1431, 59mVG, D1869, 56mG

Takashi Oba KOby10 Takato Toguchi, D3592, 35minG (cam)
Takashi Oba W10 German Torres, D3728, 40minG (cam)

Elisha Obed KOby10 Eckhard Dagge, D2936, 33minP/F
Elisha Obed KOby7 Curtis Parker, D3174, 32minVG

Fulgencio Obelmejias KO3 Leroy Green, Jr., D439, 11minG
Fulgencio Obelmejias KOby8 Marvin Hagler I, D848, 42mG, D4157, 72mG/VG
Fulgencio Obelmejias KOby5 Marvin Hagler II, D848, 18mVG, D4160, 70mG
Fulgencio Obelmejias KO8 Chong-Pal Park I, D1686, 28minF/G
Fulgencio Obelmejias W12 Chong-Pal Park II, D1686, 47minVG/EX
Fulgencio Obelmejias KOby11 In-Chul Baek, D2489, 38minF/G
Fulgencio Obelmejias KO4 Leslie Stewart, D3020, 20minF/G
Fulgencio Obelmejias KO10 Chris Reid, D3031, 37minF/G

David Obregon KO4 Oscar Rivera, D657, 7minEX (Rds 3-4)

Arturo Ocampo W3 Rudy Ramirez (AMA), 28, D2812, 11minVG
Arturo Ocampo KOby2 Julio Cesar Chavez, Jr., D144, 9minEX

Rodrigo Ocampo L4 Alonso Lopez, D2216, 16minVG

Antonio Ocasio KOby2 Shane Sutcliffe, D3214, 9minVG

Ossie Ocasio W15 Eddie 'Young Joe Louis' Taylor, D842, 61minF/G
Ossie Ocasio KOby11 Evander Holyfield, D2138, 33minG/VG
Ossie Ocasio W10 Jimmy Young I, D2819, 39minF
Ossie Ocasio W10 Jimmy Young II, D2640, 36minG
Ossie Ocasio L15 Piet Crous, D2885, 64mVG, D3156, 59mG
Ossie Ocasio KOby6 John Lewis Gardner, D2926, 19minF
Ossie Ocasio W10 Dwight Muhammad Qawi, D2986, 37minVG
Ossie Ocasio KOby7 Larry Holmes, D3046, 29minG

Jaime Ocegueda KOby3 Tony Lopez, D3762, 26minG

Abel Ocha L10 Alejandro Hernandez, D662, 43minEX

Yuji Ochiai KO1 Takeshi Kuroda, D2677, 9minG/VG

Adam Ochoa D4 Derrick Wilson, D2403, 19minEX

Johnathan Ochoa W4 Carlos Molina, D213, 20minEX

Zachary Ochoa W4 Michael Doyle, D3731, 21minG/VG
Zachary Ochoa KO5 Hector Marengo, D3947, 25minG/VG

Fernando Ocon L12 Suriyan SorRungvisai I, D3890, 40minG
Fernando Ocon KOby7 Suriyan SorRungvisai II, D3993, 24minEX

Jerry Odom KO7 Villier Quinonez, D4072, 41minVG

Kimmuel Odom KOby3 Donovan Ruddock, D3638, 18minVG

Victor Oganov KOby6 Andre Dirrell, D1863, 38minEX

Keigo Ogawa D4 Yoshinori Myoga, D2685, 19minVG

Franco Ogentho L12 Terrance Cauthen, D321, 51minEX

Kota Oguchi L6 Masanobu Nakazawa, D3880, 30minVG

Shoji Oguma W15 Betulio Gonzalez II, D126, 61mVG, D2146, 51mVG
Shoji Oguma D15 Betulio Gonzalez III, D1614, 53mF/G, D2150, 57mG
Shoji Oguma KOby12 Betulio Gonzalez IV, D369, 41mF, D1178, 50mF
Shoji Oguma KOby8 Kimio Furesawa, D514, D1357, 29minF/G
Shoji Oguma KO9 Chan-Hee Park I, D526, 40mVG, D2958, 30mG
Shoji Oguma W15 Chan-Hee Park II, D244, 55minG
Shoji Oguma W15 Chan-Hee Park III, D1829, 61mVG, D2027, 56mVG
Shoji Oguma KOby12 Jiro Watanabe, D758, 43minVG
Shoji Oguma KOby7 Antonio Avelar, D1179, 24minVG/EX
Shoji Oguma W15 Sung-Jun Kim II, D1219, 48minF
Shoji Oguma L15 Alfonso Lopez, D2027, 56mF, D3659, 54mG
Shoji Oguma W10 Chan-Young Park, D2041, 41minG
Shoji Oguma L15 Miguel Canto I, D3658, 24minF/G (Rds 1-3,9-12,15)
Shoji Oguma L15 Miguel Canto II, D451, 56minF/G

Yukinori Oguni KOby10 Shingo Wake, D3634, 45minG

Byung-Chul Oh D8 Ryo Kawai, D2684, 37minVG

Chang-Kyun Oh L12 Victor Rabanales, D1914, 48minVG
Chang-Kyun Oh D10 Kiyoshi Hatanaka, D3205, 44minVG/EX

Kwang-Soo Oh L3 Michael Carbajal, D2375, 18minG/VG
Kwang-Soo Oh KOby9 Ricardo Lopez, D2633, 33minF

Min-Kuen Oh W15 Irving Mitchell, D1753, 59minF

Yong-Wan Oh KOby4 Eijiro Murata , D4180, 14minF/G

Young-Ho Oh W10 Kwang-Min Kim, D2551, 48minG/VG
Young-Ho Oh KOby9 Hilmer Kenty, D4168, 42minVG

Young-Sae Oh KOby8 Rolando Navarrete, D3569, 20minG

Hideyuki Ohashi KOby5 Ricardo Lopez, D269, 16minG/VG, D398, 22minF
Hideyuki Ohashi KO9 Jum-Hwan Choi, D1177, 37minVG/EX
Hideyuki Ohashi L12 Chana Porpaoin, D1180, 69mVG, 1685, 58mVG
Hideyuki Ohashi W12 Napa Kiatwanchai, D1181, 56minG
Hideyuki Ohashi W12 Hi-Yong Choi, D1181, 69minVG
Hideyuki Ohashi KOby5 Jung-Koo Chang I, D1861, 17minG
Hideyuki Ohashi KOby8 Jung-Koo Chang II, D12, 24minVG
Hideyuki Ohashi KO3 Shin Sayama I, D3377, 8minG/VG
Hideyuki Ohashi KO5 Rico Macaubos, D3379, 17minG
Hideyuki Ohashi KO6 Joe Constantino, D3379, 20minG
Hideyuki Ohashi W10 Tomohiro Kiyuna, D3387, 39minG/VG
Hideyuki Ohashi KO2 Boy Emilia, D3484, 8minVG
Hideyuki Ohashi KO3 Romy Ceniza, D3484, 11minVG
Hideyuki Ohashi KO1 Tadashi Kuramoshi, D3719, 4minG

Katsuyuki Ohashi L10 Hurricane Terukina, D3721, 29minG (No 2, 4)

Atsushi Ohta KO2 Suruga Danji, D2678, 12minG/VG

Junpei Ohta KOby4 Takahiro Nishihara, D2604, 18minVG

Putt Ohyuthanakorn KOby6 Myung-Woo Yuh, D930, 26minVG

Anthony Ojeda KOby2 Oba Carr, D3746, 12minG/VG

David Ojeda L10 Manuel Gomez, D75, 40minEX

Jose Ojeda L6 Alfonso Gomez, D71, 32minEX
Jose Ojeda KO3 Arturo Barraza, D139, 21minEX
Jose Ojeda KOby9 Rolando Reyes, D470, 46minEX
Jose Ojeda L8 Eleazar Contreras, D573, 33minEX
Jose Ojeda KO4 Frank Mondejar, D1604, 17minVG
Jose Ojeda D8 Mohammad Kayongo, D3318, 41minG/VG

Shigeru Okabe KOby4 Joichiro Tatsuyoshi, D1761, 14mG/VG, D1921, 30mF
Shigeru Okabe W8 Hiroaki Yokota, D3493, 31minVG

Susumu Okabe KOby12 Ricardo Arredondo, D3195, 8minF/G (HL)
Susumu Okabe L10 Kuniaki Shibata, D3237, 22mP/F (short rds)
Susumu Okabe L10 Gold Joe II, D3384, 37minG

Seiichi Okada KOby8 Daiki Kaneko, D3884, 39minEX

Isao Okahashi KOby8 Jose Caba, D3721, 25minG (No 3-4)

Peter Okhello L12 Oleg Maskaev, D1227, 42minEX

Abraham Okine KOby3 Shannon Briggs, D757, D1141, 10minEX

Michael Olajide KOby5 Iran Barkley, D376, 18minF/G
Michael Olajide L12 Thomas Hearns, D1131, 63minVG
Michael Olajide KO7 Troy Watson, D1316, 25mVG, D1875, 23mG
Michael Olajide W10 James Green, D1398, 34minG
Michael Olajide L15 Frank Tate, D2976, 52minG
Michael Olajide W10 Troy Darrell, D3123, 50minF/G
Michael Olajide KO9 Don Lee, D3242, 42minG/VG
Michael Olajide KO6 Franklin Owens, D3360, 27minG
Michael Olajide W10 Curtis Parker, D3935, 52minVG
Michael Olajide L10 Dennis Milton, D3937, 52minG (cam)

Tokunbo Olajide KO2 Larry Marks, D1354, 19minVG/EX
Tokunbo Olajide KO4 Trevor Brown, D1242, 14minVG/EX
Tokunbo Olajide KOby1 Epifanio Mendoza, D3218, 8minF/G

Adele Olakanye W4 Tom Cameron, D155, 24minEX
Adele Olakanye L4 Brandon Cabell II, D683, 19minVG

Fabio Oliva KOby3 Joan Guzman, D2075, 16minG/VG

Jether Oliva L12 Ulises Solis, D2907, 56minG/VG

Patrizio Oliva W15 Ubaldo Sacco, D1399, 56minVG
Patrizio Oliva KOby3 Juan Coggi, D2452, 16minG/VG
Patrizio Oliva L12 James McGirt, D2505, 50minG/VG
Patrizio Oliva W12 Juan Jose Gimenez, D3371, 54minG
Patrizio Oliva KO3 Brian Brunette, D3505, 11minF/G
Patrizio Oliva W15 Rodolfo Gonzalez, D3507, 58minVG
Patrizio Oliva W12 Kirkland Laing, D3781, 32minG
Patrizio Oliva W12 Robert Gambini, D3849, 58minG
Patrizio Oliva KO4 Jose Ramon Gomez Fouz, D3869, 18minVG
Patrizio Oliva KO1 Patrizio Burini, D3871, 5minVG

Ruben Oliva KOby2 Marcos Maidana, D2590, 8minF

Ruben Olivares KO5 Lionel Rose, D11, 23mG, D2842, 15mVG
Ruben Olivares KO6 Cesar Palacio, D17, 18minF/G
Ruben Olivares KO2 Walter Seeley, D17, 7minVG
Ruben Olivares KO2 Katsuhiro Ushiwakamaru Harada, D17, 6minVG
Ruben Olivares KOby13 Alexis Arguello, D173, D278, 59minVG
Ruben Olivares KOby7 Danny Lopez, D221, 27minG
Ruben Olivares KOby4 Ignacio Madrid, D275, 14minF/G
Ruben Olivares KO11 Jesus Pimentel, D329, 47minEX
Ruben Olivares KO9 Bobby Chacon I, D332, 29minG
Ruben Olivares KO2 Bobby Chacon II, D330, 12minEX
Ruben Olivares L10 Bobby Chacon III, D869, 42minVG
Ruben Olivares KO14 Kazuyoshi Kanazawa II, D342, 43mF, D3176, 55mVG
Ruben Olivares KO6 Takao Sakurai, D446, 3minG (HL)
Ruben Olivares KOby12 Eusebio Pedroza, D556, 41minG
Ruben Olivares W15 Chucho Castillo I, D678, 60mG, D1735, 41mF
Ruben Olivares KOby14 Chucho Castillo II, D1735, 60minG/VG
Ruben Olivares KOby8 Rafael Herrera I, D789, 27minF/G
Ruben Olivares L10 Rafael Herrera II, D1619, 41minF/G
Ruben Olivares KO10 Daniel Gutierrez, D954, 32minF
Ruben Olivares W12 Art Hafey II, D1150, 43minP
Ruben Olivares KO7 Zensuke Utegawa, D1355, D3396, 29minF
Ruben Olivares KOby6 Jose Cervantes, D1905, 22minF/G
Ruben Olivares L15 David Kotey, D2538, 48minG
Ruben Olivares W10 Shoji Chiyoda, D3216, 11minG (HL)
Ruben Olivares KO4 Efren Torres, D3981, 14minVG

Elisha Olivas L6 Noriko Kariya, D1168, 17minEX

Eduardo Oliveira W4 Hector Merino, D588, 17minEX

Marcus Oliveira L12 Juergen Braehmer, D3833, 62minEX

Michael Oliveira KO7 Francisco Osorio, D2336, 23minG (Rds 3-7)

Ray Oliveira L12 Ben Tackie, D698, 55minVG
Ray Oliveira W12 Vince Phillips, D992, 47minG
Ray Oliveira KOby10 Ricky Hatton, D2055, 57minEX
Ray Oliveira L12 Zack Padilla, D3703, 54minG

Ubaldo Olivencio KOby5 Gary Stark, Jr. II, D365, 18minEX

Mike Oliver KO8 Terry Lantz, D910, 34minEX
Mike Oliver W12 Adam Carrera, D1172, 56minEX
Mike Oliver W12 Gary Stark, Jr., D1352, 61minEX
Mike Oliver KOby3 Antonio Escalante, D1872, 19minEX
Mike Oliver W12 Cruz Carbajal, D2902, 39minG
Mike Oliver KOby2 Juan Manuel Lopez, D2966, 25minEX
Mike Oliver L10 Billy Dib, D3600, 47minG/VG
Mike Oliver KO1 Johnny Collado, D4138, 4minG

Francisco Olivera TL6 Nate Campbell, D704, 35minVG/EX

Jaime Olivera KOby4 Johnny Tapia, D2116, 11minVG

Joey Olivera L10 Micky Ward, D2625, 34minF/G

Larry Olivera L4 Jorge Diaz, D41, D1665, 11minVG (Rds 3-4)

Dino Olivetti KOby2 Kozo Ishii, D2924, 5minG

Domingo Olivo L4 Chika Nakamura, D1333, 12minEX

Efren Olivo KOby5 Rene Arredondo, D3926, 17minG

Joey Olivo L15 Myung-Woo Yuh, D417, 60minVG
Joey Olivo W12 Fernando Varguez, D1085, 47minG/VG
Joey Olivo KOby1 Javier Lucas, D1302, 4minG
Joey Olivo KOby14 Hilario Zapata, D2391, 43minG/VG
Joey Olivo W15 Moon-Jin Choi, D3208, 51mG/VG (No 11), D3897, 58mF/G
Joey Olivo L10 German Torres, D3268, 39minF

Frank Olsen KOby10 Carlos Baldomir, D3696, 62minVG

Bobo Olson L15 Sugar Ray Robinson II, D1485, 47minG/VG
Bobo Olson KOby2 Sugar Ray Robinson III, D1485, 4minG (HL)
Bobo Olson KOby4 Sugar Ray Robinson IV, D1485, 2minG (HL)
Bobo Olson W15 Dick Turpin, D1490, 46minF/G
Bobo Olson W15 Rocky Castellani, D2020, 17minG/VG (HL)
Bobo Olson L10 Johnny Persol, D2105, 43minG

Scotty Olson L3 Michael Carbajal (AMA), D400, 12minF/G
Scotty Olson KO2 Silverio Porras, D1400, 16minG
Scotty Olson KOby10 Michael Carbajal, D1773, 44minG/VG
Scotty Olson KO4 Facundo Rodriguez, D3214, 18minVG

Silvio Olteanu L12 Daiki Kameda, D2622, 54minEX

Ajose Olusegun W12 Ali Chebah, D2963, 59minEX
Ajose Olusegun KOby10 Lucas Matthysse, D3573, 59minG/VG
Ajose Olusegun L10 Henry Lundy, D3610, 44minvG

Francisco Olvera L10 Jairo Ramirez, D778, 44minEX

Rafael Olvera KOby7 Jose Luis Castillo, D1522, 28mF/G, D1556, 27mG

Joseph Omana W8 Roger Galicia, D2158, 40mG/VG (called D8 in ring)

Crison Omayao L12 Wanheng Menayothin, D3036, D3578, 37minF/G

Wale Omotoso L10 Jessie Vargas, D3455, 52minVG/EX

Mitsuya Omura KOby1 Daiki Kaneko II, D3634, 6minG/VG (cam)

Genki Onaka KOby1 Rodel Mayol, D3805, 7minG (cam)

Jeffrey Onate L12 Chonlatarn Piriyapinyo, D824, 42minVG
Jeffrey Onate KOby1 Jorge Linares, D1035, 11minEX

Kwanpichit Onesongchaigym KO4 Balbeer, D4010, 14minG/VG

Thewa Onesongchaigym L12 Xian Wei Qian, D4096, 37minEX

Diego Onglao KOby1 Yuri Arbachakov, D3005, 4minG

Katsuya Onizuka KOby9 Hyung Chul Lee, D930, D1230, 33minVG/EX
Katsuya Onizuka KO5 Kenji Matsumura, D1678, 19minG/VG
Katsuya Onizuka W12 Thanomsak Sithbaobay I, D1679, 53minVG
Katsuya Onizuka W12 Thanomsak Sithbaobay II, D1679, 57minVG
Katsuya Onizuka W12 Armando Castro, D1684, 52minG/VG
Katsuya Onizuka W12 Jae-Shin Lim, D1684, 48minG
Katsuya Onizuka W12 Seung-Koo Lee, D2173, 52minVG
Katsuya Onizuka KO10 Shinichi Nakajima I, D2940, 41minVG
Katsuya Onizuka W10 Shinichi Nakajima II, D2999, 51minG
Katsuya Onizuka KO2 Masao Kawanishi, D3007, 9minG/VG
Katsuya Onizuka KO2 Yutaka Sakamoto, D3379, 7minG/VG
Katsuya Onizuka KO1 Rex Rapiso, D3380, 4minF

Shin Ono W8 Xiong Zhao Zhong, D3596, 28minF/G (cam)
Shin Ono L12 Katsunari Takayama, D4027, 46minEX

Albert Onolunose KOby2 Grady Brewer, D2179, 17minEX

Alberto Ontiveros KOby4 Martin Castillo, D1, 15mEX, D1655, 24mVG/EX
Alberto Ontiveros TL11 Neddy Garcia, D29, 51minEX
Alberto Ontiveros L6 Jose Aguiniga, D179, 29minG
Alberto Ontiveros L10 Isidro Granados, D585, 43minEX
Alberto Ontiveros L12 Eric Morel, D3812, 13minG

Joshua Onyango KOby1 Jose Luis Zertuche, D183, 14minG/VG

Samson Onyango L8 Zsolt Erdai, D2599, 41minG/VG

Thomas Oosthuizen W12 Aaron Pryor, Jr., D3126, 56minEX
Thomas Oosthuizen W12 Rowland Bryant, D3272, 61minG
Thomas Oosthuizen W12 Fulgencio Zuniga, D3351, 61minEX
Thomas Oosthuizen D10 Brandon Gonzalez, D3599, 47minVG/EX
Thomas Oosthuizen W12 Ezequiel Maderna, D3761, 55minEX

Fres Oquendo L12 Chris Byrd, D27, 60minEX (no dec.)
Fres Oquendo KOby11 John Ruiz, D132, 54minEX
Fres Oquendo W10 Javier Mora, D813, 42minEX
Fres Oquendo L12 Evander Holyfield, D1143, 88minEX
Fres Oquendo W10 Dale Crowe, D1164, 41minVG
Fres Oquendo KO10 Maurice Harris, D1438, 45minG/VG
Fres Oquendo KO8 Clifford Etienne, D1789, 28mEX, D2755, 39mG
Fres Oquendo L12 James Toney, D1946, 49minEX
Fres Oquendo L10 Jean-Marc Mormeck, D2432, 46minEX

Jonathan Oquendo LDQ6 Oscar Andrade, D1447, 31minEX
Jonathan Oquendo W10 Jose Angel Beranza, D1865, 45minEX
Jonathan Oquendo KO1 Cecilio Santos, D2676, 17minG
Jonathan Oquendo KO2 Jose Luis Araiza, D2965, 16minEX
Jonathan Oquendo KOby7 Wilfredo Vazquez, Jr., D3301, 47minVG
Jonathan Oquendo KO4 Miguel Tamayo, D3652, 18minVG
Jonathan Oquendo L10 Abner Mares, D4041, 50minG/VG

Fasanghan OrBenjamad KOby2 Takehiro Shimada, D3121, 10minG

Rey Orais L8 Sairung Suwanasil, D821, 27minVG
Rey Orais KOby3 Nethra Sasiprapa, D1394, 27minEX
Rey Orais KO8 Makoto Miyagi, D2684, 36minVG

Rodel Orais KOby4 Saenghiran Lookbanyai, D656, 33minVG

Mahir Oral L12 Sebastian Sylvester, D2596, 59minVG

Juvenal Ordenes KOby5 Azumah Nelson, D2936, 25minF/G

Jun Orhaliza KOby3 Ratanapol SorVorapin, D3979, 9minF/G

Michele Orlando KOby10 Michel Trabant, D1512, 48minVG

Enrique Ornelas KO3 Mario Lopez, D29, 16minEX
Enrique Ornelas KO7 Miguel Martin, D172, 45minEX
Enrique Ornelas KOby9 Christian Cruz, D215, 52minEX
Enrique Ornelas L10 Sam Reese, D613, 40minEX
Enrique Ornelas W8 Darnell Boone, D803, 8minEX (Rds 7-8)
Enrique Ornelas KO1 Raul Muniz, D1067, 8minEX
Enrique Ornelas L10 Sam Soliman, D1149, 52minEX
Enrique Ornelas KOby9 Cristian Cruz, D1400, 51minG/VG
Enrique Ornelas L12 Bernard Hopkins, D2233, 52minEX
Enrique Ornelas L12 Robert Stieglitz, D2620, D2655, 55minVG
Enrique Ornelas L12 Beibut Shumenov, D3181, 50minVG/EX
Enrique Ornelas KOby3 Thomas Williams, Jr., D3951, 19minVG

Rafael Orono KOby9 Chul-Ho Kim I, D353, 36minF
Rafael Orono KO6 Chul-Ho Kim II, D354, 18minF
Rafael Orono L12 Payao Poontarat, D1066, 43minF
Rafael Orono KO3 Jovito Rengifo, D1182, 10minF
Rafael Orono KOby5 Khaosai Galaxy, D3303, 18minG/VG
Rafael Orono L10 Sugar Baby Rojas, D3895, 36minF/G

Juan Pablo Oropeza W8 Pipino Cuevas, D2022, 30minF

Antonio Orozco KO6 Danny Escobar, D3308, 31minVG
Antonio Orozco KO3 Ivan Hernandez, D3655, 18minG/VG
Antonio Orozco KO2 Miguel Angel Huerta, D3883, 19minVG
Antonio Orozco W8 Steve Forbes, D4147, 32minVG

Carlos Orozco W4 Martin Lopez, D2904, 20minG/VG

Fabian Orozco KO5 Lucas Baez, D2601, 28minVG

Felipe Orozco KOby3 Jaime Garza, D576, 10minF
Felipe Orozco L10 Genaro Hernandez, D1699, 36minVG
Felipe Orozco L10 Brian Mitchell, D2190, 46minF/G
Felipe Orozco KOby2 Barry McGuigan, D2637, 27minG/VG
Felipe Orozco KOby6 Jaime Garza, D3897, 14minF/G

Orlando Orozco KOby1 Winky Wright, D2118, 6minF/G
Orlando Orozco KOby5 James McGirt, D2506, 18minG
Orlando Orozco KOby2 Mark Breland, D2941, 14minG

Rafael Orozco L12 Jake Matlala, D1964, 53minVG

Jamie Orrantia L8 Cauahtemoc Vargas I, D1351, 37minVG/EX
Jaime Orrantia D8 Cuauhtemoc Vargas II, D219, 38minEX

Jesse Orta W6 Richard Starnino, D1334, 30minEX

Luis Ortales L3 Johnny Tapia (HL, AMA), D1120, 3minVG

Arturo Ortega W8 Omar Pittman, D1020, 34minEX

Carlos Ortega W10 Gilberto Pedroza, D3918, 49minVG

Gaspar Ortega L10 Florentino Fernandez II, D862, 46minF
Gaspar Ortega L10 Federico Thompson, D1793, 48minG
Gaspar Ortega KOby12 Emile Griffith II, D2231, 52minG/VG

Jesus Ortega KOby2 Jose Correa, D813, 18minEX

Jesus Ortega L6 Zou Shiming, D3620, 31minVG

Joel Ortega KOby1 Victor Ortiz, D340, 12minEX
Joel Ortega KOby5 Brandon Rios, D671, 28minEX
Joel Ortega KOby2 Anthony Salcido, D1099, 18minEX

Jorge Ortega L8 Akeem Anifowoshe, D1075, 29mVG, D1297, 29mG

Jose Manuel Ortega W6 Braulio Lopez, D1334, 27minEX

Pedro Ortega KOby6 Kelly Pavlik, D168, 33minEX
Pedro Ortega L10 Eric Regan I, D634, 37minVG
Pedro Ortega KO9 Eric Regan II, D81, 43minEX
Pedro Ortega L12 Eric Regan III, D164, D3316, 52minEX
Pedro Ortega KOby6 Andy Lee, D1323, 16minEX (Rds 3-6)

Rafael Ortega W15 Flipper Uehara, D1828, 39minF

Robert Ortega L12 Terrance Cauthen I, D2794, 41minG/VG

Roberto Ortega L6 Shamone Alvarez, D383, 24minEX

Yober Ortega KO11 Kozo Ishii, D1688, 46minVG
Yober Ortega L12 Yoddamrong Sithyodthong, D1897, 54minG
Yober Ortega L12 Antonio Cermeno I, D2165, D2557, 53minF/G
Yober Ortega L12 Antonio Cermeno II, D2557, 53minF/G

Victor Ortiz KO1 Joel Ortega, D340, 12minEX
Victor Ortiz KO2 Donnell Logan, D573, 13minEX
Victor Ortiz W4 Leroy Fountain, D654, 19minEX
Victor Ortiz W4 Alejandro Nungary, D658, 22minEX
Victor Ortiz KO1 Freddie Barrera, D724, 14minEX
Victor Ortiz KO4 Orlando Cantera, D894, 19minEX
Victor Ortiz KO2 Yair Aguilar, D1093, 16minEX
Victor Ortiz KO5 Nestor Rosas, D675, 28minEX
Victor Ortiz W12 Andre Berto, D2801, 65minVG
Victor Ortiz W8 Alfred Kotey, D1280, 33minEX
Victor Ortiz NC1 Marvin Cordova, Jr., D1287, 14minEX
Victor Ortiz KO1 Carlos Maussa, D1463, 12minEX
Victor Ortiz KO5 Roberto Arrieta, D1728, 32minVG
Victor Ortiz KO2 Jeffrey Resto, D1936, 20minEX
Victor Ortiz KO2 Mike Arnaoutis, D2044, 20minEX
Victor Ortiz KOby6 Marcos Maidana, D2137, 60minVG
Victor Ortiz KO10 Hector Alatorre, D2357, 34minEX
Victor Ortiz W10 Nate Campbell, D2466, 50minVG
Victor Ortiz KO3 Vivian Harris, D2544, 23minEX
Victor Ortiz D10 Lamont Peterson, D2582, 49minEX
Victor Ortiz KOby4 Floyd Mayweather, Jr., D2929, 46minVG/EX
Victor Ortiz KOby9 Josesito Lopez, D3225, 64minVG
Victor Ortiz KOby2 Luis Collazo, D3894, 31minVG

Anabel Ortiz KO3 Neisi Torres, D4044, 14minG

Angel Jose Ortiz KOby3 Rocky Mattioli, D3491, 10minG

Carlos Ortiz KOby6 Ken Buchanan, D12, 27mG, D487, 14mG/VG (HL)
Carlos Ortiz W15 Ismael Laguna I, D441, 49minVG
Carlos Ortiz W15 Ismael Laguna II, D2182, 48minVG (No 3-4,9)
Carlos Ortiz L10 Johnny Busso I, D1341, 42minF/G
Carlos Ortiz KO13 Douglas Vaillant II, D1621, 1minG (HL)
Carlos Ortiz KO14 Flash Elorde II, D2082, 50minVG
Carlos Ortiz W15 Joe Brown, D3449, 51minG
Carlos Ortiz KO10 Battling Torres, D3608, 39minF
Carlos Ortiz W10 Harry Bell II, D3629, 36minG
Carlos Ortiz KO12 Johnny Bizzarro, D3889, 43minG/VG

Claudio Ortiz L4 Matt O'Brien, D2728, 18minG/VG

Edwin Ortiz L4 Raul Hinajosa, D3522, 16minVG

Elio Ortiz KOby4 Teddy Reid, D471, D1284, 29minVG/EX
Elio Ortiz KOby10 Joachim Alcine, D855, 42minEX
Elio Ortiz KOby6 Kermit Cintron, D1091, 28minVG
Elio Ortiz L12 Sharmba Mitchell, D3820, 69minG/VG
Elio Ortiz KOby1 Jantony Ortiz, D4041, 9minVG

Eric Ortiz KO7 Jose Antonio Aguirre, D411, 39minEX
Eric Ortiz KOby1 Brian Viloria, D940, 8minVG/EX
Eric Ortiz KOby9 Ulises Solis, D1154, 33minEX
Eric Ortiz L10 Ulises Solis, D2528, 48minVG

Franco Ortiz W4 Dario Perez, D1401, 27minVG

Jantony Ortiz KO1 Elio Ortiz, D4041, 9minVG

Leoncio Ortiz KOby15 Roberto Duran, D1080, 53minG/VG

Luis Ortiz L4 Anthony Rodriguez, D371, 14minEX (Rds 2-4)
Luis Ortiz KO1 Lateff Kayode, D4102, 16minG/VG

Rafael Ortiz D8 Humberto Chavez, D23, 35minEX
Rafael Ortiz KOby2 David Torres, D669, 17minEX

Robert Ortiz KO2 Thomas Hensley, D333, 9minEX

Roberto Ortiz KO6 Carlos Urias, D3039, 23minG
Roberto Ortiz KO2 Florencio Castellano, D3354, 14minEX
Roberto Ortiz W12 Reyes Sanchez, D3725, 45minG/VG
Roberto Ortiz KOby2 Lucas Matthysse, D4090, 29minG/VG

Rodrigo Ortiz W4 Hector Simon, D322, 19minEX

Sandra Ortiz L8 Sarah Goodson, D936, 23minEX

Silverio Ortiz TL7 Jorge Paez, D115, 44minEX
Silverio Ortiz L10 David Diaz, D702, 47minEX
Silverio Ortiz W8 Miguel Huerta, D769, 42minEX
Silverio Ortiz W8 Ricardo Dominguez, D943, 27minEX
Silverio Ortiz L10 Czar Amonsot, D996, 28minEX (Rds 6-10)
Silverio Ortiz KOby2 Marcos Maidana, D2594, 18minG
Silverio Ortiz L12 Humberto Soto, D3466, 48minG
Silverio Ortiz KO2 Felipe Teniente, D4151, 12minVG

Victor Ortiz KOby2 Antonio Cervantes, D274, 7mF, D2918, 7mG

Felipe Orucuta KO3 David Solano, D2415, 15minEX
Felipe Orucuta KO3 Julio Ler, D2840, 13minG
Felipe Orucuta W10 Daniel Rosas, D2891, 40minVG
Felipe Orucuta KO5 Devis Perez, D2939, 22mVG, D3002, 23mVG
Felipe Orucuta L12 Omar Narvaez I, D3568, 60minG
Felipe Orucuta L12 Omar Narvaez II, D4112, 67minVG

Jeff Osborne KO1 Ronald Hearns, D1218, 11minEX

Jeffrey Osbourne D6 Stephan Pryor, D1444, 29minEX

Eusebio Osejo KOby10 Alberto Garza, D2341, 50minEX
Eusebio Osejo L12 Jhonny Gonzalez, D3461, 53minG

Anwar Oshana KOby2 Jeff Lacy, D2706, 22minVG

Robert Osiobe L8 Mark Davis, D3602, 32minG/VG

Dolores Osorio KOby2 Koki Kameda, D2019, 10minEX

Francisco Osorio KOby7 Michael Oliveira, D2336, 23minG (Rds 3-7)

Manuel Ossie KOby1 Chris Arreola, D766, 6minEX

Angel Osuna KO1 Eddie Hunter, D3272, 12minVG

Charlie Ota KO8 Akio Shibata I, D3626, 53minVG
Charlie Ota KO6 Akio Shibata II, D2896, 29minEX
Charlie Ota KO9 Koji Numata, D3626, 53minVG
Charlie Ota L12 Jermell Charlo, D3993, 60minG/VG

Frankie Otero L10 Ken Buchanan I, D1487, 54mF/G, D2524, 49mVG

Sande Otieno KOby5 Bernabe Concepcion, D1990, 30minVG

Iwao Otomo W10 Yoshimitsu Asato I, D3652, 14minG (Rds 3,5,9-10)

Emmanuel Otti KOby4 Chong-Pal Park, D906, 17minF/G
Emmanuel Otti KOby3 Marcos Geraldo, D4014, 14minF

Sven Ottke W12 Armand Krajnc, D1813, 39minVG
Sven Ottke W12 Robin Reid, D1817, 55mVG, D2745, 62mVG
Sven Ottke W12 Glen Johnson, D3105, 52minG

Said Ouali KO4 James Johnson, D687, 14minVG
Said Ouali L8 Manning Galloway, D1396, 34minG/VG
Said Ouali KO2 Irving Garcia, D1408, 12minEX
Said Ouali L12 Selcuk Aydin, D2119, 60minEX
Said Ouali KO1 Hector Saldivia, D2447, 11minVG/EX
Said Ouali NC2 Randall Bailey, D2671, 26minEX

Jeremy Ouanna KOby1 Grigory Drozd, D3911, 19minG/VG

Karim El Ouazghari KOby9 Kevin Mitchell, D3835, 40minG

Stephane Ouellet KOby12 Davey Hilton I, D766, D3231, 47mVG/EX
Stephane Ouellet KOby3 Davey Hilton II, D3231, 17minG/VG
Stephane Ouellet W10 Davey Hilton III, D3231, 56minG/VG
Stephane Ouellet L4 Cedric Spera, D4115, 23minG/VG

Kassim Ouma KO10 Juan Carlos 'JC' Candelo, D138, 52minEX
Kassim Ouma W12 Verno Phillips II, D216, 74mEX, D1403, 75mG/VG
Kassim Ouma W12 Kofi Jantuah, D312, 62minEX
Kassim Ouma L12 Roman Karmazin, D522, 65minEX
Kassim Ouma KO8 Francisco Mora, D676, 41minEX
Kassim Ouma W12 Marco Antonio Rubio, D749, 58minVG
Kassim Ouma W10 Sechew Powell, D1012, 51minEX
Kassim Ouma L12 Jermain Taylor, D1188, 71minEX
Kassim Ouma KOby10 Gennady Golovkin, D2859, 48minVG/EX

Chris Overbay KOby3 James McGirt, Jr., D676, 11minEX

Masaharu Owada KO4 Mugen Kawasaka I, D3220, 16minG/VG
Masaharu Owada W10 Mugen Kawasaka II, D3621, 46minG/VG
Masaharu Owada KO10 Mugen Kawasaka III, D3621, 46minG/VG
Masaharu Owada KO7 Hidekazu Akai, D3499, 15minG (No 3,5-6)

Johnny Owen KOby12 Lupe Pintor (Ital), D82, 45minEX, D872, 42minG
Johnny Owen KOby12 Lupe Pintor (Eng), D1126, 41mF, D3335, 40mG
Johnny Owen KO10 Wayne Evans, D3854, 18minF/G (6 Rds)

Franklin Owens KOby6 Michael Olajide, D3360, 27minG
Franklin Owens KOby9 Michael Nunn, D3885, 26minG/VG

Jimmy Owens KOby6 Phil Garcia, D348, 27minVG

Craig Oxley KOby1 Jesus Gonzalez, D55, 10minEX

Fujio Ozaki L12 Marlon Starling, D1480, 49minG/VG
Fujio Ozaki KOby4 Mark Breland, D1557, 16minG
Fujio Ozaki KOby5 Jung-Oh Park, D2958, 20minG
Fujio Ozaki KO8 Nobutaka Kuwata, D3460, 33minF/G
Fujio Ozaki W10 Junya Kushikino, D3497, 29minG (No 2,6)

Daisuke Ozawa W4 Masahiro Asami, D887, 20miNEX

Gokalp Ozekler D12 Istvan Szili, D3657, 56minG/VG