Super bantamweight · Philippines
John Riel Casimero 39-5-1 27 KO · 2007–2026
Updated Oct 14, 2026 · Sources: Wikidata, English Wikipedia, Wikipedia (ja), +5
John Riel Casimero is a super bantamweight boxer from Philippines, born Feb 13, 1990. Record 39-5-1 with 27 knockouts over 2007–2026. World titles: WBO bantamweight (2019–2022), IBF flyweight (2016), IBF light flyweight (2012–2014). John Riel Casimero last fought Luis Nery on Jun 6, 2026 and won by TKO in round 4 of 10.
Also: Джон Ріель Казімеро · Джонриэль Касимеро · جوهنريل كاسيميرو +7 more จอห์นเรียล คาซิเมโร · ジョンリル・カシメロ · 喬里爾·卡西美路 · John Riel Reponte Casimero · Johnriel Casimero · Quadro Alas · Касимеро, Джонриэль
Born Feb 13, 1990
Country 🇵🇭 Philippines
Stance Orthodox
Height 163 cm
Reach 178 cm
Debut Jun 3, 2007
Career 2007–2026
Rounds boxed 297
KO share 69%
Born in Merida, Leyte, Philippines
Titles IBF light flyweight · 2012–2014; IBF flyweight · 2016; WBO bantamweight · 2019–2022
Boxerbook rating #5 in Featherweight · 2162 ± 123Why here › Confirmed bouts 24 of 45 · 14 official
Record and next fight Record
39-5-1, 27 KOs · 2007–2026
Next fight
No next fight confirmed
Last result W
TKO 4/10 · Aichi Prefecture International Exhibition Hall A, Tokoname, 🇯🇵
The record 45 bouts, 2007–2026, newest first. Records under each bout are both boxers going in.
Bouts by source: English Wikipedia · 42, Wikipedia (ja) · 42, IBF/USBA Results · 9, Wikipedia (ru) · 6, Japan Boxing Commission — 試合報告書 · 3, California State Athletic Commission — Results (archive) · 2, WBA Fights Master Scores · 1
W
TKO 4/10 · Aichi Prefecture International Exhibition Hall A, Tokoname, 🇯🇵
Casimero 38-5-1 · Nery 37-2-0
W
KO 5/8 · Aichi Prefecture International Exhibition Hall A, Tokoname, 🇯🇵
Casimero 37-5-1 · Mizokoshi —
L
UD 10/10 · Bishkek Arena, Bishkek
Casimero 37-4-1 · Kameda 16-5-2
W
TKO 1/10 · Yokohama Budokan, Yokohama, 🇯🇵
Casimero 36-4-1 · Sanchez 21-3-0
D
TD 4/10 · Ariake Arena, Tokyo, 🇯🇵
Casimero 36-4-0 · Oguni 24-2-3
W
Fillipus Nghitumbwa
Won WBO Global super bantamweight title UD 12/12 · Okada Manila Hotel and Casino, Parañaque, 🇵🇭
Casimero 35-4-0 · Nghitumbwa —
W
KO 2/10 · Paradise City Plaza, Incheon, 🇰🇷
Casimero 34-4-0 · Akaho 42-2-2
W
Retained WBO bantamweight title SD 12/12 · Dignity Health Sports Park, Carson, 🇺🇸
Casimero 33-4-0 · Rigondeaux 22-1-0
W
Retained WBO bantamweight title TKO 3/12 · Mohegan Sun Arena, Montville, Connecticut, 🇺🇸
Casimero 32-4-0 · Micah 24-0-0
W
Won WBO bantamweight title TKO 3/12 · Arena Birmingham, Birmingham, 🇬🇧
Casimero 31-4-0 · Tete 29-3-0
W
Cesar Ramirez
Retained WBO interim bantamweight title KO 10/12 · San Andres Civic & Sports Center, Manila, 🇵🇭
Casimero 30-4-0 · Ramirez —
W
Ricardo Espinoza Franco
Won vacant WBO interim bantamweight title KO 12/12 · Dignity Health Sports Park, Carson, 🇺🇸
Casimero 29-4-0 · Franco —
W
TKO 6/10 · Midas Hotel and Casino, Pasay, 🇵🇭
Casimero 28-4-0 · Yamashita 13-4-0
W
Jose Pech
TKO 2/6 · Casino Hipodromo Agua Caliente, Tijuana, 🇲🇽
Casimero 27-4-0 · Pech —
L
Jonas Sultan
UD 12/12 · Waterfront Hotel & Casino, Cebu City, 🇵🇭
Casimero 27-3-0 · Sultan —
W
Jecker Buhawe
UD 6/6 · Iligan Public Plaza, Iligan, 🇵🇭
Casimero 26-3-0 · Buhawe —
W
TKO 10/12 · O2 Arena, London, 🇬🇧
Casimero 25-3-0 · Edwards 8-0-0
W
KO 4/12 · Diamond Court, Beijing, 🇨🇳
Casimero 24-3-0 · Ruenroeng 17-0-0
L
UD 12/12 · Indoor Stadium Huamark, Bangkok, 🇹🇭
Casimero 24-2-0 · Ruenroeng 15-0-0
W
TKO 2/12 · Salón Las Palmas, Pachuca Hidalgo, 🇲🇽
Casimero 23-2-0 · Santos —
Show all 45 bouts W
Mauricio Fuentes
IBF light flyweight title at stake only for Fuentes as Casimero missed weight KO 1/12 · Waterfront Hotel & Casino, Cebu City, 🇵🇭
Casimero 22-2-0 · Fuentes —
W
Retained IBF light flyweight title TKO 10/12 · Makati Coliseum, Manila, 🇵🇭
Casimero 21-2-0 · Salguero —
W
Luis Alberto Rios
Retained IBF light flyweight title UD 12/12 · Megapolis Convention Center, Panama City, 🇵🇦
Casimero 20-2-0 · Rios —
W
Luis Alberto Rios
UD 12/12
Casimero 19-2-0 · Rios —
W
Retained IBF light flyweight title SD 12/12 · Centro de Convenciones, Mazatlan, 🇲🇽
Casimero 18-2-0 · Guevara 18-0-1
W
For IBF interim light-flyweight title TKO 10/12 · Club Once Unidos, Mar del Plata, 🇦🇷
Casimero 17-2-0 · Lazarte 49-10-2
W
Roemart Sentillas
TKO 2/10 · Hoops Dome, Lapu-Lapu, 🇵🇭
Casimero 16-2-0 · Sentillas —
W
Roemalto Sentijas
TKO 1
Casimero 15-2-0 · Sentijas —
L
TKO 5/12 · Nasrec Indoor Arena, Johannesburg, 🇿🇦
Casimero 15-1-0 · Mthalane 26-2-0
L
For WBO interim light flyweight title SD 12/12 · Polideportivo Centenario, Los Mochis, 🇲🇽
Casimero 15-0-0 · Hirales 12-1-1
W
Won vacant WBO interim light flyweight title TKO 11/12 · Dennis Martínez National Stadium, Managua, 🇳🇮
Casimero 14-0-0 · Canchila 28-3-0
W
Vacant interim WBO world light flyweight title TKO 11
Casimero 13-0-0 · Canchila 28-2-0
W
Retained WBO Asia Pacific light flyweight title KO 8/12 · Cebu Coliseum, Cebu City, 🇵🇭
Casimero 12-0-0 · Diale 0-2-0
W
UD 8/8 · Sports Complex, Naga, 🇵🇭
Casimero 11-0-0 · Ranada 18-17-1
W
Won vacant WBO Asia Pacific light flyweight title TKO 5/12 · Sports Complex, Talisay, 🇵🇭
Casimero 10-0-0 · Chumthong —
W
Rodel Quilaton
Won vacant PBF flyweight title UD 10/10 · Eusebio Sestoso Memorial Coliseum, Alcoy, 🇵🇭
Casimero 9-0-0 · Quilaton —
W
Roemart Sentillas
TKO 3/10 · Compostela, Cebu, 🇵🇭
Casimero 8-0-0 · Sentillas —
W
Roel Honor
TKO 1/10 · Baybay City Sports Complex, Baybay, 🇵🇭
Casimero 7-0-0 · Honor —
W
Daryl Amoncio
MD 8/8 · City Auditorium, Lapu-Lapu, 🇵🇭
Casimero 6-0-0 · Amoncio —
W
Jerome Bontog
KO 3/6 · City Plaza Square, Mandaue, 🇵🇭
Casimero 5-0-0 · Bontog —
W
Rogen Flores
TD 6/8 · Sports Center, Borbon, 🇵🇭
Casimero 4-0-0 · Flores —
W
Dodong Zalde
KO 2/6 · Sports Center, Carmen, 🇵🇭
Casimero 3-0-0 · Zalde —
W
Roel Honor
UD 6/6 · Sports Center, Daanbantayan, 🇵🇭
Casimero 2-0-0 · Honor —
W
Andrew Pal
TKO 2/4 · Multi-Purpose Sports Complex, Alcoy, 🇵🇭
Casimero 1-0-0 · Pal —
W
Lobert Bayo
UD 4/4 · Barangay Maguikay, Mandaue, 🇵🇭
Casimero 0-0-0 · Bayo —
Ratings now
World titles
Facts
What is John Riel Casimero's record? John Riel Casimero's professional record is 39-5-1 with 27 knockouts.
When is John Riel Casimero's next fight? No next fight is confirmed as of 18 Oct 2026.
Who did John Riel Casimero fight last? John Riel Casimero last fought Luis Nery on Jun 6, 2026 and won by TKO in round 4 of 10.
Which world titles has John Riel Casimero held? John Riel Casimero has held 3 world title reigns: WBO bantamweight (2019–2022), IBF flyweight (2016), IBF light flyweight (2012–2014). Sources Boxerbook ID 10351 · permanent link boxerbook.com/id/10351 . Wikidata (CC0), English Wikipedia (CC BY-SA), publisher rankings, photo from the Instagram profile. Last fetched: 2026-10-12. Spot a mistake? Every bout page has a link to report it.