Seiji Tanaka boxer
- bouts
- 26
- won
- 16
- lost
- 7
- draw
- 3
- Status
- inactive
- Division
- super flyweight
- Debut
- 1997-07-31
- Height
- 5′ 7″/170cm
- Reach
- -
- Age
- 28
- Born
- 1977-01-01
- Death
- 2005-04-15
- Nationality
- Japan
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 2005-04-03 | Nobuo Nashiro | WWWWW | IMP Hall, Osaka | LOST Technical knockout |
| 2004-11-27 | Masayuki Arinaga | WWLDWW | Bunka Gym, Yokohama | WIN Unanimous decision |
| 2004-09-20 | Narong Datchthuyawat | LLLWLL | Prefectural Gymnasium, Osaka | WIN Technical knockout |
| 2004-05-02 | Joven Jorda | WLWLLW | IMP Hall, Osaka | WIN Unanimous decision |
| 2003-09-28 | Vesarat Kanchit | LLLLLL | Prefectural Gymnasium, Osaka | WIN KO |
| 2003-04-14 | Yasuo Kijima | WWWWWW | Korakuen Hall | LOST Unanimous decision |
| 2002-11-26 | Yuki Murai | LLWDWW | Central Gym, Osaka | WIN Unanimous decision |
| 2002-08-20 | Gerry Penalosa | WWWLWW | Blaisdell Center Arena, Honolulu | LOST Corner retirement |
| 2002-03-23 | Somchai Longluachat | LWLLLL | Arena, Yokohama | WIN KO |
| 2001-11-02 | Noriyuki Komatsu | WDWWWD | Prefectural Gymnasium, Osaka | LOST |
| 2001-07-31 | Tomoya Miyauchi | WWL | WIN |
|
| 2001-04-24 | Koji Fujiwara | WWWWLW | Osaka | DRAW Points |
| 2000-12-12 | Ricky Protacio | DWLWLL | Maizu Arena, Osaka | WIN Points |
| 2000-08-27 | Noboru Fukuyama | WWLLWW | Prefectural Gymnasium, Osaka | DRAW Points |
| 2000-04-12 | Tamotsu Akazawa | LWWWWD | Osaka | WIN |
| 1999-11-29 | Jun Yamauchi | WWLLLL | Prefectural Gymnasium, Osaka | WIN Points |
| 1999-08-29 | Katsuhiko Yoshikai | LLWLLD | Osaka Dome, Osaka | LOST Points |
| 1999-05-02 | Kazuhiro Shima | LL | Ikeda | LOST Points |
| 1998-11-09 | Takayuki Korogi | WWD | Osaka | LOST Points |
| 1998-07-28 | Tatsuya Imazu | WWWLWW | Osaka | WIN Points |
| 1998-05-19 | Kaname Se | LWLL | Osaka | DRAW Points |
| 1998-04-02 | Naoki Tani | L | Osaka | WIN Points |
| 1998-02-03 | Yuki Okamoto | L | Prefectural Gymnasium, Osaka | WIN Points |
| 1997-11-18 | Shinnosuke Inui | debut | Prefectural Gymnasium, Osaka | WIN Points |
| 1997-10-14 | Seiji Yamada | debut | Osaka | WIN Technical knockout |
| 1997-07-31 | Hirotomo Adachi | debut | Osaka | WIN Points |