Koji Ishibashi boxer
- bouts
- 43
- won
- 22
- lost
- 16
- draw
- 5
- Status
- inactive
- Division
- bantamweight
- Debut
- 1956-03-29
- Height
- -
- Reach
- -
- Age
- -
- Born
- 1931-01-11
- Death
- -
- Nationality
- Japan
| Date | Opponent | Last Opponents' Results | Place | Titles | Result |
|---|---|---|---|---|---|
| 1961-12-05 | Sadao Yaoita | LWLWWW | Maebashi | LOST KO |
|
| 1961-09-22 | Masakatsu Kuroki | LLWLWL | Osaka | LOST KO |
|
| 1961-07-20 | Tetsuya Yamaguchi | WWLWWW | Japanese Bantamweight Title | LOST KO |
|
| 1961-04-22 | Sadao Yaoita | LWWWWW | LOST KO |
||
| 1961-03-12 | Yoshihiro Nanao | WWWLLW | WIN Points |
||
| 1961-02-01 | Tetsuya Yamaguchi | LWWWWL | Japanese Bantamweight Title | LOST Points |
|
| 1960-10-28 | Mitsuhiro Kato | LLWDLL | Japanese Bantamweight Title | WIN Points |
|
| 1960-08-05 | Takeo Suzuki | LLWWWW | Japanese Bantamweight Title | LOST Points |
|
| 1960-05-15 | Kogen Arai | L | Osaka | Japanese Bantamweight Title | WIN Points |
| 1960-04-10 | Kozo Nagata | WDLWLW | Japanese Bantamweight Title | WIN Points |
|
| 1960-02-12 | Masaru Hasegawa | LDLL | Osaka | WIN KO |
|
| 1959-12-25 | Kazuo Takayama | WDWLWW | LOST KO |
||
| 1959-11-13 | Mitsuharu Ikeda | LWLLWW | Japanese Bantamweight Title | WIN Points |
|
| 1959-11-04 | Kazuo Okui | LL | WIN KO |
||
| 1959-07-06 | Sadao Yaoita | WWWWWW | LOST Points |
||
| 1959-04-20 | Yoshio Harada | DLWLLL | WIN Points |
||
| 1959-03-02 | Masakazu Otsuka | LLWLWL | Osaka | Japanese Bantamweight Title | WIN Points |
| 1959-01-14 | Kook Myun Chung | DL | Japanese Bantamweight Title | WIN Points |
|
| 1958-11-05 | Mitsuharu Ikeda | WWLLLW | Japanese Bantamweight Title | WIN Points |
|
| 1958-07-11 | Manuel Armenteros | LDWDLW | LOST KO |
||
| 1958-06-14 | Al Asuncion | DWWLWL | Rizal Stadium, Manila | LOST Corner retirement |
|
| 1958-05-13 | Hisao Kobayashi | WWLWWW | WIN Points |
||
| 1958-04-11 | Shiro Kawasaki | W | WIN Points |
||
| 1958-01-07 | Saburo Otaki | WLLWLD | Japanese Bantamweight Title | WIN Points |
|
| 1957-11-20 | Leo Espinosa | DWWWWW | OPBF Bantamweight Title | LOST Points |
|
| 1957-10-14 | Sanong Rorsorpor | LWLWWW | WIN KO |
||
| 1957-08-25 | Saburo Otaki | WWWLLW | Japanese Bantamweight Title | WIN Points |
|
| 1957-07-15 | Hisao Kobayashi | WWDWDW | Japanese Bantamweight Title | LOST Points |
|
| 1957-06-14 | Genji Sakai | WLWWDW | Japanese Bantamweight Title | WIN Points |
|
| 1957-05-10 | Shiro Sasaki | DWWLLW | Japanese Bantamweight Title | WIN Points |
|
| 1957-04-13 | Takeshi Yamaguchi | WWWWWW | Japanese Bantamweight Title | LOST Points |
|
| 1957-03-09 | Kazuo Takayama | WWWDLD | Japanese Bantamweight Title | DRAW Points |
|
| 1957-02-01 | Yasuji Takahashi | WWWWWW | Japanese Bantamweight Title | LOST Points |
|
| 1957-01-05 | Shigeo Akagi | LLLD | Japanese Bantamweight Title | WIN Points |
|
| 1956-11-23 | Yasuji Takahashi | WLWWWW | Japanese Bantamweight Title | LOST Points |
|
| 1956-10-28 | Susumu Taguchi | WWLWWW | Japanese Bantamweight Title | DRAW Points |
|
| 1956-10-12 | Toshikatsu Akashi | DD | Japanese Bantamweight Title | WIN Points |
|
| 1956-09-24 | Toshikatsu Akashi | D | Japanese Bantamweight Title | DRAW Points |
|
| 1956-08-15 | Mutsuo Iida | WDLL | Japanese Bantamweight Title | DRAW Points |
|
| 1956-06-28 | Sakae Suzuki | LWWWWL | Japanese Bantamweight Title | LOST Points |
|
| 1956-06-04 | Tamotsu Otake | debut | Japanese Bantamweight Title | WIN Points |
|
| 1956-05-28 | Masaru Miyazaki | LLLLLL | Japanese Bantamweight Title | DRAW Points |
|
| 1956-03-29 | Eiichi Fujiyama | LLLLLL | Japanese Bantamweight Title | WIN Points |
