Masakazu Otsuka boxer
- bouts
- 59
- won
- 35
- lost
- 21
- draw
- 3
- Status
- inactive
- Division
- bantamweight
- Debut
- 1950-07-05
- Height
- -
- Reach
- -
- Age
- -
- Born
- 1933-10-02
- Death
- -
- Nationality
- Japan
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1960-12-26 | Shinji Hatta | LLWL | Osaka | WIN Points |
| 1959-03-17 | Kozo Nagata | DWWWWW | LOST Points |
|
| 1959-03-02 | Koji Ishibashi | WWLLWW | Osaka | LOST Points |
| 1959-02-17 | Kyo Noguchi | DLDWWW | LOST Points |
|
| 1959-01-04 | Kook Myun Chung | D | WIN Points |
|
| 1958-10-14 | Floyd Gatiuan | WWWWWW | Osaka | LOST Points |
| 1958-10-08 | Hiroshi Takaoka | WWWWWW | WIN Points |
|
| 1958-09-16 | Yukio Katsumata | LWWWWL | LOST Points |
|
| 1958-08-19 | Kenji Yonekura | W | LOST Points |
|
| 1958-08-05 | Kenji Inagaki | WWWWWL | WIN KO |
|
| 1958-05-03 | Gil Flores | WWDWW | Rizal Memorial Sports Complex, Manila | LOST KO |
| 1958-03-29 | Dommy Ursua | LLLWWL | Manila | LOST KO |
| 1958-01-07 | Hisao Kobayashi | DWWWLW | LOST Points |
|
| 1957-10-26 | Mutsuo Iida | LLLDLW | WIN Points |
|
| 1957-09-24 | Hisao Kobayashi | DWDWWW | Osaka | WIN Technical knockout |
| 1957-08-19 | Kenji Yanagihara | L | Osaka | WIN Points |
| 1957-07-26 | Tan Inoue | WLW | Osaka | WIN Points |
| 1957-05-18 | Al Asuncion | LWLDWD | Quezon City | LOST Points |
| 1957-04-30 | Danny Kid | LWDDLW | Rizal Open Arena, Manila | DRAW Points |
| 1957-04-03 | Little Cezar | LWWLD | Manila | WIN Points |
| 1957-03-20 | Leo Espinosa | WWWWWL | LOST Points |
|
| 1957-02-02 | Al Asuncion | WLWLDW | Quezon City | DRAW Points |
| 1956-12-15 | Jackie Trillana | WWWLLL | Manila | WIN Points |
| 1956-11-16 | Frisco Concepcion | LLDWLW | Grace Park Stadium, Caloocan City | WIN Points |
| 1956-08-10 | Mitsuo Kawahara | debut | Kobe | WIN Points |
| 1956-07-28 | Mitsuharu Ikeda | WWLLWW | Shizuoka | WIN Points |
| 1956-07-12 | Leo Espinosa | WLWLWW | Osaka | LOST Points |
| 1956-06-20 | Wataru Inagaki | LLDWLL | Osaka | WIN Points |
| 1956-04-03 | Mitsuharu Ikeda | WWLWWL | Nagoya | WIN Points |
| 1956-03-24 | Kazuo Takayama | LWWWLW | Kobe | WIN Points |
| 1956-03-02 | Susumu Taguchi | WWWWWW | LOST Points |
|
| 1955-08-12 | Danny Kid | WWWLLW | DRAW Points |
|
| 1955-06-28 | Keiichi Komuro | WWWWWL | LOST Points |
|
| 1955-04-19 | Keiichi Komuro | WWWWWW | Osaka | WIN Points |
| 1955-02-11 | Tanny Campo | WWWLWW | Osaka | LOST Points |
| 1954-11-29 | Toshimitsu Hirai | debut | Prefectural Gymnasium, Osaka | WIN KO |
| 1954-08-13 | Kunoi Vithichai | W | Osaka Pool, Osaka | WIN Points |
| 1954-06-10 | Keiichi Komuro | WWLDWW | LOST Points |
|
| 1954-05-26 | Kid Tolosa | LWWLL | Prefectural Gymnasium, Osaka | LOST Points |
| 1954-04-08 | Takahisa Horiguchi | LLLWWW | Osaka | WIN Points |
| 1953-12-06 | Gene Garcia | LWLLLL | Osaka | WIN Points |
| 1953-10-26 | Terumitsu Arita | LLWLL | Prefectural Gymnasium, Osaka | LOST Points |
| 1953-08-28 | Hideto Kobayashi | DDWWW | City Hall, Nagoya | LOST Points |
| 1953-08-08 | Gene Garcia | LWLL | Koshien Baseball Stadium, Nishinomiya | WIN Points |
| 1953-05-25 | Kenichi Kita | DLDD | Prefectural Gymnasium, Osaka | WIN Points |
| 1953-04-18 | Toshio Ishihara | debut | Kobe | WIN Points |
| 1953-03-28 | Takashi Endo | WLL | Prefectural Gymnasium, Osaka | WIN KO |
| 1953-03-05 | Takeo Suzuki | debut | Osaka | WIN Points |
| 1953-02-14 | Isamu Onishi | LLL | Osaka | WIN Technical knockout |
| 1953-01-17 | Muneyoshi Takayama | WLLLLL | Osaka | WIN Points |
| 1953-01-04 | Isamu Onishi | LL | Prefectural Gymnasium, Osaka | WIN Points |
| 1952-12-24 | Kentaro Araki | debut | Kobe | WIN Points |
| 1952-12-01 | Masaaki Sasaki | debut | Osaka Stadium, Osaka | WIN KO |
| 1952-01-27 | Takashi Higashihara | debut | Kobe | WIN Points |
| 1951-12-24 | Jiro Matayoshi | debut | Osaka | WIN Points |
| 1951-06-27 | Takeshi Nomura | WDLWLL | Amagasaki | LOST KO |
| 1951-04-02 | Masamitsu Takayama | debut | Kyoto | WIN KO |
| 1951-01-14 | Shigeru Okazawa | LD | Osaka | WIN Points |
| 1950-07-05 | Shigeru Aida | debut | Amagasaki | LOST Points |