Ryosuke Iwasa


Ryosuke Iwasa is a Japanese professional boxer. He has held the IBF interim super-bantamweight title since 2019 and previously held the IBF super-bantamweight title from 2017 to 2018.

Career

Iwasa turned pro in 2008, after winning national titles as an amateur and accruing a 60-6 record. Iwasa was considered a highly touted prospect until he lost a bout for the Japanese bantamweight title against future world champion Shinsuke Yamanaka. Iwasa would eventually win that title, as well as the OPBF title.
Iwasa's first world title fight would come against Lee Haskins for the interim IBF bantamweight title on June 2015. Iwasa would be stopped in round 6 after being knocked down by a left hook from Haskins. Following that loss, Iwasa moved to the super bantamweight division.
In his fifth fight at that weight, Iwasa defeated Yukinori Oguni for the IBF super bantamweight title. Iwasa battered the defending champion, dropping him three times before the fight was stopped in round 6.

Professional boxing record

No.ResultRecordOpponentTypeRound, timeDateLocationNotes
30Win27–3 Marlon TapalesTKO11, 1:09Dec 7, 2019 Barclays Center, New York City, New York, USWon IBF interim super-bantamweight title
29Win26–3 Cesar JuarezTD9, 3:00Feb 16, 2019 Microsoft Theater, Los Angeles, California, USUnanimous TD after Juarez cut from accidental head clash
28Loss25–3 T.J. DohenyUD12Aug 16, 2018 Kokugikan, Tokyo, JapanLost IBF super-bantamweight title
27Win25–2 Ernesto SaulongUD12Mar 1, 2018 Kokugikan, Tokyo, JapanRetained IBF super-bantamweight title
26Win24–2 Yukinori OguniTKO6, 2:16Sep 13, 2017 EDION Arena Osaka, Osaka, JapanWon IBF super-bantamweight title
25Win23–2 Glenn MeduraTKO3, 2:55Mar 2, 2017 Kokugikan, Tokyo, Japan
24Win22–2 Aekkawee KaewmaneeKO3, 2:17Jul 12, 2016 Korakuen Hall, Tokyo, Japan
23Win21–2 Dennis TubieronKO7, 1:42Feb 6, 2016 Korakuen Hall, Tokyo, Japan
22Win20–2 Marlon ArcillaTD5, 0:15Nov 24, 2015 Kokugikan, Tokyo, Japan
21Loss19–2 Lee HaskinsTKO6, 2:10Jun 13, 2015 Whitchurch Sports Centre, Bristol, EnglandFor IBF interim bantamweight title
20Win19–1 Ricardo RoaTKO2, 2:55Feb 18, 2015 Korakuen Hall, Tokyo, Japan
19Win18–1 Rommy WassarKO2, 1:03Sep 6, 2014 Korakuen Hall, Tokyo, Japan
18Win17–1 Richard PumicpicMD12Mar 25, 2014 Korakuen Hall, Tokyo, JapanRetained OPBF bantamweight title
17Win16–1 Hiroki ShiinoTKO5, 2:52Dec 6, 2013 Kokugikan, Tokyo, JapanWon OPBF bantamweight title
16Win15–1 Jecker BuhaweUD10Jul 6, 2013 Korakuen Hall, Tokyo, Japan
15Win14–1 Mark John YapUD10Mar 2, 2013 Korakuen Hall, Tokyo, Japan
14Win13–1 David De La MoraUD10Oct 27, 2012 Tokyo International Forum, Tokyo, Japan
13Win12–1 Kentaro MasudaTKO7, 1:49Jul 7, 2012 Korakuen Hall, Tokyo, JapanRetained Japanese bantamweight title
12Win11–1 Yuki MuraiKO1, 3:00Mar 3, 2012 Korakuen Hall, Tokyo, JapanRetained Japanese bantamweight title
11Win10–1 Jerope MercadoUD10Nov 18, 2011 Korakuen Hall, Tokyo, JapanWon Japanese bantamweight title
10Win9–1 RasmanudinKO2, 0:41Aug 6, 2011 Korakuen Hall, Tokyo, Japan
9Loss8–1 Shinsuke YamanakaTKO10, 1:28Mar 5, 2011 Korakuen Hall, Tokyo, JapanFor Japanese bantamweight title
8Win8–0 Kinshiro UsuiTKO4, 1:08Sep 5, 2010 Korakuen Hall, Tokyo, Japan
7Win7–0 Yuki SatoTKO2, 2:14Apr 15, 2010 Korakuen Hall, Tokyo, Japan
6Win6–0 Marvin TampusUD8Jan 16, 2010 Korakuen Hall, Tokyo, Japan
5Win5–0 Falazona FidalTKO7, 1:04Sep 5, 2009 Korakuen Hall, Tokyo, Japan
4Win4–0 Worawut MuangsimaKO2, 1:58May 16, 2009 Korakuen Hall, Tokyo, Japan
3Win3–0 Ginzo HanakiTKO1, 2:11Feb 21, 2009 Korakuen Hall, Tokyo, Japan
2Win2–0 Edgar AllendeUD6Oct 16, 2008 Yoyogi First Gym, Tokyo, Japan
1Win1–0 Shinya TakahashiTKO5, 0:43Aug 2, 2008 Korakuen Hall, Tokyo, Japan