Ken Achiwa boxer
- bouts
- 34
- won
- 12
- lost
- 16
- draw
- 6
- Status
- active
- Division
- bantamweight
- Debut
- 2006-03-27
- Height
- 5′ 3″/160cm
- Reach
- -
- Age
- 32
- Born
- 1986-07-19
- Death
- -
- Nationality
- Japan
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 2021-06-29 | Tsubasa Murachi | WWWLWW | Korakuen Hall | LOST Unanimous decision |
| 2021-01-16 | Chikato Sumida | LWWLWW | Korakuen Hall | DRAW Split-decision |
| 2019-06-28 | Hikaru Ota | WWLWLL | Korakuen Hall | WIN Unanimous decision |
| 2019-01-12 | Naoto Fujimoto | WLWLLW | Korakuen Hall | LOST Unanimous decision |
| 2018-05-15 | Rey Orais | LLWWWL | Korakuen Hall | LOST Unanimous decision |
| 2017-12-06 | Suguru Muranaka | WWWWWL | Korakuen Hall | LOST Unanimous decision |
| 2017-05-28 | Xinghua Wang | WLLLWL | Mianyang | LOST Unanimous decision |
| 2016-11-15 | Joe Tanooka | LWWWLW | Korakuen Hall | DRAW Split-decision |
| 2016-05-12 | Naoto Fujimoto | WWLLLW | Korakuen Hall | WIN Unanimous decision |
| 2015-11-09 | Kaname Tabei | DWLLLL | Korakuen Hall | WIN Technical knockout |
| 2015-05-12 | Tatsuya Takahashi | LWWWLW | Korakuen Hall | DRAW Split-decision |
| 2014-08-02 | Ryuji Yokoyama | WWWWWW | Adachi Ward Sogo Sports Center | DRAW Majority decision |
| 2014-04-24 | Ganbare Shota | LWWLWL | Korakuen Hall | WIN Technical knockout |
| 2013-10-16 | Kenta Nakagawa | LWLWWW | Korakuen Hall | LOST Technical knockout |
| 2013-07-30 | Yohei Tobe | WWWLDW | Korakuen Hall | LOST Unanimous decision |
| 2013-03-21 | Suguru Muranaka | WWWWWW | Korakuen Hall | LOST Unanimous decision |
| 2013-01-12 | Thawee Thodamma | W | Korakuen Hall | WIN Unanimous decision |
| 2012-04-09 | Masamichi Nozaki | WWWWWW | Korakuen Hall | LOST Majority decision |
| 2011-11-15 | Yuki Nasu | WLLWWW | Korakuen Hall | LOST Majority decision |
| 2011-08-04 | Toyoto Shiraishi | WWWWWW | Korakuen Hall | LOST Unanimous decision |
| 2011-04-21 | Keita Yamaguchi | LLLWLL | Korakuen Hall | WIN Technical knockout |
| 2010-07-23 | Yuki Fukumoto | WLWWWL | Korakuen Hall | LOST Split-decision |
| 2009-12-07 | Masafumi Otake | WLLLLD | Korakuen Hall | DRAW Points |
| 2009-07-23 | Masato Anzai | WWWWWW | Korakuen Hall | LOST Unanimous decision |
| 2009-03-29 | Tetsuma Hayashi | WWDWWW | Iwai Sogo Gym, Bando | LOST Unanimous decision |
| 2008-12-15 | Masatoshi Yoshioka | WWWLWL | Korakuen Hall | WIN Split-decision |
| 2008-07-05 | Kenichi Yoshioka | WWLWLL | Korakuen Hall | LOST Majority decision |
| 2008-01-28 | Yusaku Suzuki | WWDLWW | Korakuen Hall | WIN Majority decision |
| 2007-10-23 | Takeo Kuranaga | DWWW | Korakuen Hall | WIN Majority decision |
| 2007-08-01 | Ryota Ichikawa | LWWWLW | Korakuen Hall | LOST Unanimous decision |
| 2007-05-21 | Masashi Muto | DWWLLD | Korakuen Hall | WIN Unanimous decision |
| 2006-10-02 | Toshimitsu Ochi | WLWL | Korakuen Hall | DRAW Points |
| 2006-08-05 | Shinichi Murata | WL | Korakuen Hall | WIN Majority decision |
| 2006-03-27 | Hidenaga Kawamatsu | debut | Korakuen Hall | WIN Technical knockout |