Seihi Miyamoto boxer
- bouts
- 7
- won
- 3
- lost
- 2
- draw
- 2
- Status
- inactive
- Division
- welterweight
- Debut
- 2006-01-24
- Height
- -
- Reach
- -
- Age
- -
- Born
- 1980-12-13
- Death
- -
- Nationality
- Japan
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| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 2007-06-04 | Kyoichiro Shoji | WWD | Korakuen Hall | DRAW |
| 2007-03-24 | Kosuke Takeda | WLWDW | Kokugikan | LOST Unanimous decision |
| 2007-02-12 | Kyoichiro Shoji | WW | Korakuen Hall | DRAW |
| 2006-09-28 | Yuichi Ideta | WWWW | Korakuen Hall | LOST Technical knockout |
| 2006-08-01 | Hiroyuki Endo | WWLW | Korakuen Hall | WIN Split-decision |
| 2006-06-29 | Masashi Igarashi | WW | Korakuen Hall | WIN Majority decision |
| 2006-01-24 | Tsuyoshi Ishibe | debut | Korakuen Hall | WIN KO |
