Jerwin Juntilla Ancajas (born January 1, 1992) is a Filipino professional boxer who held the IBF junior-bantamweight title from 2016 to 2022. Nicknamed “Pretty Boy,” Ancajas built his reputation with a string of successful defenses across multiple countries, including decisive wins over José Alfredo Rodríguez, Teiru Kinoshita, Jamie Conlan, and Israel González. Known for his southpaw stance, sharp body attacks, and consistency, he defended his title nine times before moving up in weight to challenge for the WBA bantamweight crown. With over 40 professional bouts and a record featuring 24 knockouts, Ancajas remains one of the Philippines’ most accomplished champions in the lighter divisions.
Super Bantamweight
Jerwin Ancajas
Panabo City, Philippines
38Wins
5Losses
2Draws
22KOs
Career: 2009 – present
Biography
World Titles
- IBF IBF World Super Flyweight Won Sep 3, 2016 · Lost Feb 26, 2022 (UD Loss) · UD Fernando Daniel Martinez
Regional & Other Belts
- Philippine / Philippines Philippine Games & Amusements Board, Philippines GAB Super Bantamweight Won Jan 25, 2025 · Lost Jan 25, 2026
- IBF IBF Pan Pacific Super Flyweight Won May 3, 2014 · Lost May 3, 2015
- Philippines Philippines LuzProBA Bantamweight Won Aug 30, 2013 · Lost Aug 30, 2014
- WBO WBO Asia Pacific Youth Super Flyweight Won Apr 16, 2011 · Lost Mar 17, 2012
Fight Record
| Date | Opponent | Result | Method | Round | Venue |
|---|---|---|---|---|---|
| Jun 28, 2026 | Omar Trinidad | D | UD | 10 | — |
| Apr 18, 2026 | Ruben Antonio Tostado Garcia | D | TKO | 4/8 | Hipódromo Caliente Arena Tecate, Tijuana |
| Aug 2, 2025 | Ruben Dario Casero | D | MD | 8 | Thunder Studios, Long Beach |
| Jan 25, 2025 | Richie Mepranum | D | KO | 2/12 | Iligan City Public Plaza, Iligan City |
| Sep 22, 2024 | Sukpasried Ponphitak | D | DQ | 5/10 | Mandaluyong City College, Mandaluyong City |
| Feb 24, 2024 | Takuma Inoue | D | KO | 9/12 | Ryogoku Kokugikan, Tokyo |
| Jun 24, 2023 | Wilner Soto | D | TKO | 5/8 | Armory, Minneapolis |
| Oct 8, 2022 | Fernando Daniel Martinez | D | UD | 12 | Dignity Health Sports Park, Carson |
| Feb 26, 2022 | Fernando Daniel Martinez | D | UD | 12 | Cosmopolitan of Las Vegas, Las Vegas |
| Apr 10, 2021 | Jonathan Rodriguez | D | UD | 12 | Mohegan Sun Casino, Uncasville |
| Dec 7, 2019 | Miguel Gonzalez | D | TKO | 6/12 | Auditorio GNP Seguros, Puebla |
| May 4, 2019 | Ryuichi Funai | D | RTD | 6/12 | Stockton Arena, Stockton |
| Sep 28, 2018 | Alexandro Santiago | D | SD | 12 | Oracle Arena, Oakland |
| May 26, 2018 | Jonas Sultan | D | UD | 12 | Save Mart Arena, Fresno |
| Feb 3, 2018 | Israel Gonzalez | D | TKO | 10/12 | Bank of America Center, Corpus Christi |
| Nov 18, 2017 | Jamie Conlan | D | TKO | 6/12 | The SSE Arena, Belfast |
| Jul 2, 2017 | Teiru Kinoshita | D | TKO | 7/12 | Suncorp Stadium, Brisbane |
| Jan 29, 2017 | Jose Alfredo Rodriguez | D | RTD | 7/12 | Cotai Arena, Venetian Resort, Macao |
| Sep 3, 2016 | McJoe Arroyo | D | UD | 12 | Jurado Hall of the Philippine Marine Corp, Taguig City |
| Nov 13, 2015 | Paul Apolinario | D | KO | 1/10 | Philippine Navy Gymnasium Bonifacio Naval Station, Taguig City |
| May 30, 2015 | Juan Purisima | D | KO | 9/10 | Lagao Gym, General Santos City |
| Nov 23, 2014 | Fadhili Majiha | D | KO | 3/8 | Coati Arena, Venetian Macao, Macau |
| Aug 23, 2014 | Rachmat Santoso | D | TKO | 1/10 | Almendras Gym, Davao City |
| May 3, 2014 | Anukul Promkamsaw | D | KO | 1/12 | University of SouthEastern Philippines Gym, Davao City |
| Feb 22, 2014 | Tanawat Phonnaku | D | KO | 2/8 | Coati Arena, Venetian Macao, Macau |
| Dec 14, 2013 | Ryan Bongcawil | D | KO | 2/10 | Lagao Gym, General Santos City |
| Aug 30, 2013 | Armando Casa | D | TKO | 4/8 | Lucena City Recreational Gym, Lucena City |
| Dec 21, 2012 | Runlong Xu | D | TKO | 4/6 | Somewhere in, Haikou |
| Sep 21, 2012 | Jose Tamayo Gonzalez | D | TKO | 10/10 | Cuneta Astrodome, Pasay City |
| Aug 16, 2012 | John Paul Bautista | D | RTD | 3/10 | Mandaluyong Sports Complex, Mandaluyong City |
| Mar 17, 2012 | Mark Anthony Geraldo | D | MD | 10 | Hoops Dome, Lapu-Lapu City |
| Dec 23, 2011 | Rodel Quilaton | D | UD | 10 | Imus Plaza Covered Court, Imus |
| Aug 27, 2011 | Jing Xiang | D | UD | 10 | People's Stadium, Tianjin |
| Aug 6, 2011 | Jason Egera | D | TKO | 8/10 | Island Cove Hotel and Leisure Park, Kawit |
| Apr 16, 2011 | Rex Tito | D | UD | 10 | SM Lipa, Lipa City |
| Feb 19, 2011 | Pit Anacaya | D | UD | 10 | Imus Plaza Covered Court, Imus |
| Dec 22, 2010 | Menard Zaragosa | D | UD | 8 | Imus Sports Gymnasium, Imus |
| Nov 20, 2010 | Julius Agcopra | D | TKO | 3/8 | Imus Plaza Covered Court, Imus |
| Sep 26, 2010 | Leo de Guia | D | UD | 6 | Arayata Sports Complex, Tanza |
| Aug 7, 2010 | Redney Quezon | D | TKO | 1/6 | Arayata Sports Complex, Tanza |
| Jun 26, 2010 | Leo de Guia | D | UD | 6 | Bagumbayan Sports Complex, Taguig City |
| May 15, 2010 | Ervin Yamo | D | TD | 1/4 | Wilfredo Cabalse Sports Complex, Cebu City |
| Sep 25, 2009 | Jimmy Paypa | D | MD | 4 | Cebu Coliseum, Cebu City |
| Sep 3, 2009 | Sherwin McDo Lungay | D | TKO | 1/4 | Polomolok Gym, Polomolok |
| Jul 27, 2009 | Reynaldo Buluan | D | TKO | 1/4 | Polanco, Zamboanga del Norte |
