Masaki Hirai boxer
- bouts
- 26
- won
- 4
- lost
- 19
- draw
- 3
- Status
- active
- Division
- flyweight
- Debut
- 2007-04-07
- Height
- -
- Reach
- -
- Age
- 33
- Born
- 1985-06-23
- Death
- -
- Nationality
- Japan
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 2018-12-24 | Pyon Takuya | LWWLLW | Sumiyoshi Ward Center, Osaka | LOST Technical knockout |
| 2017-07-16 | Masamichi Yabuki | WWWLW | Aioi Hall, Kariya | LOST Technical knockout |
| 2017-01-08 | Tatsuro Nakashima | WWW | City Gym, Tomigusuku | LOST Unanimous decision |
| 2016-06-30 | Desierto Nagaike | WWWLWW | Korakuen Hall | LOST Technical knockout |
| 2015-09-26 | Takayuki Teraji | LLLLWL | Arena, Beppu | LOST Unanimous decision |
| 2015-05-16 | Seita Ogido | WWWWDL | Kyuden Gym, Fukuoka | LOST Corner retirement |
| 2014-12-28 | Kenta Shimizu | WWWWLW | Sumiyoshi Ward Center, Osaka | LOST Unanimous decision |
| 2014-11-09 | Takeru Kamikubo | WWWWWW | Bodymaker Colosseum, Osaka | LOST Unanimous decision |
| 2014-07-20 | Kensei Hirano | WW | Abeno Ward Center, Osaka | LOST Unanimous decision |
| 2013-12-21 | Kenichi Yoshioka | LLWWWL | Kyuden Gym, Fukuoka | WIN Unanimous decision |
| 2013-07-12 | Ryuya Yamanaka | WWWWL | Central Gym, Kobe | LOST Technical knockout |
| 2013-05-19 | Yamato Uchinono | DDDDWL | Kyuden Gym, Fukuoka | LOST Unanimous decision |
| 2013-03-20 | Naoya Haruguchi | LWLW | Kaikyo Messe, Shimonoseki | LOST Split-decision |
| 2012-12-09 | Norihide Shibata | L | Ito Bunka Hall, Itoshima | WIN KO |
| 2012-08-19 | Naoya Haruguchi | L | Kaikyo Messe, Shimonoseki | LOST Split-decision |
| 2012-03-04 | Yamato Uchinono | WDL | Foodpal Kumamoto, Kumamoto | DRAW Majority decision |
| 2011-09-19 | Kazuma Kitahara | WWWLWW | City Hall, Nagoya | LOST Unanimous decision |
| 2011-08-14 | Takayuki Teraji | WLW | City Sogo Gym, Miyazaki | WIN Unanimous decision |
| 2011-01-23 | Kenichi Miyazaki | debut | Sadowara Gym, Miyazaki | LOST Split-decision |
| 2010-06-13 | Keita Okahara | WW | Nakagusuku Gym, Nakagami | DRAW Majority decision |
| 2009-11-09 | Ryuji Hira | LWLWLW | Prefectural Gymnasium, Hiroshima | LOST Majority decision |
| 2009-05-31 | Tatsuya Fukuhara | WWWW | Sogo Gym, Masukicho | DRAW |
| 2008-11-30 | Tatsuya Miyamoto | LLWW | Convention Center, Ginowan | LOST |
| 2008-09-06 | Musashi Suzuki | debut | Korakuen Hall | LOST Unanimous decision |
| 2008-04-20 | Keisuke Kimino | LWWWL | Prefectural Gymnasium, Miyazaki | LOST Majority decision |
| 2007-04-07 | Toshiyuki Suda | DL | Diamond Hall, Okinawa | WIN Corner retirement |