On December 31, 2012 Miyazaki defeated former WBA mimimumweight champion Pornsawan Porpramook by split decision to capture the vacant WBA mimimumweight title.[1] After successfully defending the title twice against Carlos Velarde and Jesús Silvestre, he would vacate the title to move up to the Light Flyweight division.[2] He would attempt to become a 2 weight world champion against WBA Light flyweight champion Ryoichi Taguchi but would lose via Unanimous decision.[3]
Result | Record | Opponent | Type | Round, time | Date | Location | Notes |
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{{no2}}Loss | 24-2-3 | {{flagicon|JPN}} Ryoichi Taguchi | UD}} | 12 (12)}} | 2016-08-31}} | {{flagicon|JPN}} {{small|Ota City General Gymnasium, Ōta, Tokyo}} | {{small|For WBA Light Flyweight title}} |
{{yes2}}Win | 24-1-3 | {{flagicon|THA}} Chaowalit Choedram | KO}} | 3 (8)}} | 2015-12-31}} | {{flagicon|JPN}} {{small|Osaka Prefectural Gymnasium, Osaka}} | |
{{yes2}}Win | 23-1-3 | {{flagicon|THA}} Nattawut Saisopa | KO}} | 4 (8)}} | 2015-04-22}} | {{flagicon|JPN}} {{small|Osaka Prefectural Gymnasium, Osaka}} | |
{{yes2}}Win | 22-1-3 | {{flagicon|THA}} Kajonsak Nattapolgym | TKO}} | 3 (8)}} | 2014-12-31}} | {{flagicon|JPN}} {{small|Osaka Prefectural Gymnasium, Osaka}} | |
{{yes2}}Win | 21-1-3 | {{flagicon|IDN}} Ichal Tobida | KO}} | 5 (8)}} | 2014-09-16}} | {{flagicon|JPN}} {{small|Korakuen Hall, Tokyo}} | |
{{no2}}Loss | 20-1-3 | {{flagicon|THA}} Teeraphong Utaida | KO}} | 3 (10)}} | 2013-12-31}} | {{flagicon|JPN}} {{small|Osaka Prefectural Gymnasium, Osaka}} | |
{{yes2}}Win | 20-0-3 | {{flagicon|MEX}} Jesús Silvestre | MD}} | 12 (12)}} | 2013-09-11}} | {{flagicon|JPN}} {{small|Osaka Prefectural Gymnasium, Osaka}} | {{small|Retained WBA Minimumweight title}} |
{{yes2}}Win | 19-0-3 | {{Flagicon|MEX}} Carlos Velarde | TKO}} | 5 (12)}} | 2013-05-08}} | {{Flagicon|JPN}} {{small|Osaka Prefectural Gymnasium, Osaka}} | {{small|Retained WBA Minimumweight title}} |
{{yes2}}Win | 18-0-3 | {{Flagicon|THA}} Pornsawan Porpramook | SD}} | 12 (12)}} | 2012-12-31}} | {{Flagicon|JPN}} {{small|Osaka Prefectural Gymnasium, Osaka}} | {{small|Won vacant WBA Minimumweight title}} |
{{yes2}}Win | 17-0-3 | {{Flagicon|PHI}} Michael Landero | UD}} | 12 (12)}} | 2012-06-20}} | {{Flagicon|JPN}} {{small|Osaka Prefectural Gymnasium, Osaka}} | {{small|Retained OPBF Light flyweight title}} |
{{yes2}}Win | 16-0-3 | {{Flagicon|THA}} Somprasong Chuenchana | TKO}} | 3 (8)}} | 2011-12-31}} | {{Flagicon|JPN}} {{small|Osaka Prefectural Gymnasium, Osaka}} | |
{{yes2}}Win | 15-0-3 | {{Flagicon|PHI}} Jerson Mancio | KO}} | 4 (12)}} | 2011-10-02}} | {{Flagicon|JPN}} {{small|IMP Hall, Osaka}} | {{small|Retained OPBF Light Flyweight title}} |
{{yes2}}Win | 14-0-3 | {{Flagicon|PHI}} Donny Mabao | UD}} | 12 (12)}} | 2011-06-12}} | {{Flagicon|JPN}} {{small|IMP Hall, Osaka}} | {{small|Retained OPBF Light Flyweight title}} |
{{yes2}}Win | 13-0-3 | {{Flagicon|THA}} Manot Comput | KO}} | 5 (10)}} | 2011-02-11}} | {{Flagicon|JPN}} {{small|World Memorial Hall, Kobe}} | |
{{yes2}}Win | 12-0-3 | {{Flagicon|JPN}} Junichi Ebisuoka | TKO}} | 11 (12)}} | 2010-10-21}} | {{Flagicon|JPN}} {{small|Bunka Hall, Kobe}} | {{small|Retained OPBF Light Flyweight title}} |
{{yes2}}Win | 11-0-3 | {{Flagicon|JPN}} Katsuhiko Iezumi | TKO}} | 8 (12)}} | 2010-06-14}} | {{Flagicon|JPN}} {{small|Korakuen Hall, Tokyo}} | {{small|Won OPBF Light Flyweight title}} |
{{draw}}Draw | 10-0-3 | {{Flagicon|JPN}} Suguru Takizawa | TD}} | 4 (10)}} | 2010-02-21}} | {{Flagicon|JPN}} {{small|IMP Hall, Osaka}} | {{small|Retained Japanese Light Flyweight title}} |
{{yes2}}Win | 10-0-2 | {{Flagicon|JPN}} Munetsugu Kayo | TD}} | 10 (10)}} | 2009-10-12}} | {{Flagicon|JPN}} {{small|Korakuen Hall, Tokyo}} | {{small|Won Japanese Light Flyweight title}} |
{{yes2}}Win | 9-0-2 | {{Flagicon|JPN}} Shinnosuke Saito | TKO}} | 1 (8)}} | 2009-07-22}} | {{Flagicon|JPN}} {{small|Korakuen Hall, Tokyo}} | |
{{yes2}}Win | 8-0-2 | {{Flagicon|JPN}} Hiroaki Kusunoki | TKO}} | 1 (8)}} | 2009-04-12}} | {{Flagicon|JPN}} {{small|Osaka Prefectural Gymnasium, Osaka}} | |
{{yes2}}Win | 7-0-2 | {{Flagicon|JPN}} Takuya Yamada | TD}} | 9 (10)}} | 2008-11-24}} | {{Flagicon|JPN}} {{small|Osaka Prefectural Gymnasium, Osaka}} | |
{{yes2}}Win | 6-0-2 | {{Flagicon|THA}} Bunnam Thammakhun | UD}} | 10 (10)}} | 2008-06-22}} | {{Flagicon|JPN}} {{small|Osaka Prefectural Gymnasium, Osaka}} | |
{{draw}}Draw | 5-0-2 | {{Flagicon|JPN}} Keisuke Akagi | TD}} | 3 (10)}} | 2008-02-29}} | {{Flagicon|JPN}} {{small|Osaka Prefectural Gymnasium, Osaka}} | |
{{yes2}}Win | 5-0-1 | {{Flagicon|THA}} Aekatit Kanyaprom | KO}} | 2 (8)}} | 2008-01-05}} | {{Flagicon|JPN}} {{small|Osaka Prefectural Gymnasium, Osaka}} | |
{{yes2}}Win | 4-0-1 | {{Flagicon|JPN}} Taiji Hashimoto | UD}} | 8 (8)}} | 2007-10-14}} | {{Flagicon|JPN}} {{small|Osaka Prefectural Gymnasium, Osaka}} | |
{{draw}}Draw | 3-0-1 | {{Flagicon|JPN}} Toshihiko Kido | TD}} | 3 (6)}} | 2007-06-24}} | {{Flagicon|JPN}} {{small|Nishinari Ward Gym, Osaka}} | |
{{yes2}}Win | 3-0 | {{Flagicon|JPN}} Yasuhiro Suda | UD}} | 6 (6)}} | 2007-04-29}} | {{Flagicon|JPN}} {{small|IMP Hall, Osaka}} | |
{{yes2}}Win | 2-0 | {{Flagicon|THA}} Suanruang Sorthanapinyo | TKO}} | 1 (4)}} | 2007-02-12}} | {{Flagicon|JPN}} {{small|Archaic Hall, Amagasaki}} | |
{{yes2}}Win | 1-0 | {{Flagicon|THA}} Daothong Teerasakgym | KO}} | 2 (4)}} | 2006-12-24}} | {{Flagicon|JPN}} {{small|Azalea Taisho, Osaka}} | {{small|Professional debut}} |
1. ^{{cite web|url=http://espn.go.com/boxing/story/_/id/8795755/kazuto-ioka-captures-vacant-wba-light-flyweight-title|title=Kazuto Ioka captures vacant WBA light flyweight title|publisher=ESPN|accessdate=2017-03-14}}
2. ^{{cite web|url=http://www.asianboxing.info/asian-news/ryo-miyazaki-vacates-wba-light-flyweight-title|title=Ryo Miyazaki vacates WBA Minimumweight title |publisher=Asian Boxing|access-date=2018-04-29}}
3. ^{{cite web|url=https://www.japantimes.co.jp/sports/2016/09/01/more-sports/boxing-2/taguchi-retains-light-flyweight-crown/#.WuWtlUxFxMs|title=Taguchi retains light flyweight crown|publisher=The Japan Times|accessdate=2017-04-29}}