Hiroshi Yoshiyama (Hiroshi Kojima) boxer
- bouts
- 20
- won
- 15
- lost
- 5
- draw
- 0
- Status
- inactive
- Division
- super flyweight
- Debut
- 2000-05-17
- Height
- 5′ 7″/170cm
- Reach
- -
- Age
- -
- Born
- 1978-03-29
- Death
- -
- Nationality
- Japan
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| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 2006-12-10 | Daisuke Naito | WWWLWW | IMP Hall, Osaka | LOST Unanimous decision |
| 2006-09-10 | Jung Oh Son | WWLLWL | IMP Hall, Osaka | LOST Unanimous decision |
| 2006-05-14 | Thanawat Chornchan | LL | IMP Hall, Osaka | WIN KO |
| 2006-01-15 | Narong Datchthuyawat | LLLWLW | IMP Hall, Osaka | WIN KO |
| 2005-10-16 | Seiichi Haraguchi | WWWLWL | IMP Hall, Osaka | WIN Unanimous decision |
| 2005-05-01 | Narong Datchthuyawat | LWLLLL | IMP Hall, Osaka | WIN Technical knockout |
| 2005-02-26 | Desperard Yasu | DWWWDW | Prefectural Gymnasium, Osaka | WIN Majority decision |
| 2004-10-30 | Payab Patavikorngym | LLW | Prefectural Gymnasium, Osaka | WIN |
| 2004-08-01 | Yuji Haraguchi | LLWDLW | IMP Hall, Osaka | WIN Technical knockout |
| 2004-06-26 | Saming Chopchai | debut | Prefectural Gymnasium, Osaka | WIN KO |
| 2004-02-15 | Kazuhiro Matsuda | WLLWLW | Central Gym, Osaka | WIN Majority decision |
| 2003-07-20 | Kiyokuni Kanaya | LDLLWW | Abeno Gymnasium, Osaka | WIN Unanimous decision |
| 2003-05-31 | Desperard Yasu | LDWLWD | Abeno Gymnasium, Osaka | LOST Unanimous decision |
| 2003-03-01 | Takanori Morimoto | WLWLL | Abeno Gymnasium, Osaka | WIN Technical knockout |
| 2002-12-14 | Shigeki Ichinomiya | DWWLDL | Abeno Gymnasium, Osaka | LOST Split-decision |
| 2002-09-11 | Kiyokuni Kanaya | LWWLDL | Prefectural Gymnasium, Osaka | WIN Unanimous decision |
| 2001-08-17 | Akio Tatsuno | W | Archaic Hall, Amagasaki | WIN Technical knockout |
| 2001-04-28 | Mikio Yasuda | LWDW | Azalea Taisho, Osaka | LOST KO |
| 2000-10-18 | Masafumi Ogata | D | Archaic Hall, Amagasaki | WIN Points |
| 2000-05-17 | Mikio Yasuda | debut | Prefectural Gymnasium, Osaka | WIN Unanimous decision |