Ryutaro Otsuki boxer
- bouts
- 20
- won
- 12
- lost
- 7
- draw
- 1
- Status
- inactive
- Division
- super lightweight
- Debut
- 1979-05-01
- Height
- -
- Reach
- -
- Age
- -
- Born
- 1958-08-27
- Death
- -
- Nationality
- Japan
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| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1985-11-18 | Hikaru Tomonari | WWWWLL | Korakuen Hall | LOST KO |
| 1985-05-07 | Makoto Mochizuki | WWWWLL | Korakuen Hall | DRAW Points |
| 1984-09-08 | Sang-Ho Lee | WWLWWW | Seoul | LOST KO |
| 1984-03-06 | Hidekazu Akai | WWWLWW | Korakuen Hall | LOST KO |
| 1983-11-01 | Makoto Mochizuki | WWWWW | Korakuen Hall | WIN KO |
| 1983-04-19 | Young-Dae Kim | LWDWWL | Korakuen Hall | WIN Technical knockout |
| 1982-11-05 | Max Boy Toyogon | LLWLWL | Korakuen Hall | WIN KO |
| 1982-06-04 | Seitaro Chinen | LWWLWW | Korakuen Hall | WIN Points |
| 1982-03-06 | Noboru Hatakeyama | LWLWLL | Korakuen Hall | WIN KO |
| 1981-08-04 | Kiyomasa Kato | WWWW | Korakuen Hall | LOST Technical knockout |
| 1981-03-29 | Yasuo Hasegawa | LWW | Korakuen Hall | WIN KO |
| 1980-11-08 | Ryo Asuka | LWWWLL | Korakuen Hall | LOST KO |
| 1980-10-16 | Kazuaki Yukawa | WWD | Korakuen Hall | WIN Points |
| 1980-09-09 | Yohi Arai | LWWLWL | LOST KO |
|
| 1980-05-30 | Fusao Imai | WWWWWW | Korakuen Hall | LOST KO |
| 1980-02-25 | Hammer Itoi | DWWLLW | Korakuen Hall | WIN KO |
| 1979-12-24 | Ryuji Fujiwara | debut | Korakuen Hall | WIN Points |
| 1979-11-20 | Eiichi Sato | L | Korakuen Hall | WIN KO |
| 1979-07-20 | Toshikazu Inada | L | Korakuen Hall | WIN KO |
| 1979-05-01 | Shunji Konishi | debut | WIN KO |
