Jerwin Ancajas (37-4-2, 24) was born in Panabo, Davao del Norte, Philippines on January 1, 1992. At the age of 17 years on July 27, 2009, he made his professional boxing debut against Reynaldo Buluan, winning the fight via 1st-round TKO.
On his 27th career fight at 24 years old, Ancajas became a super-flyweight world champion on September 3, 2016 after defeating McJoe Arroyo via 12-round unanimous decision to win the IBF title.
Ancajas' last fight was a 8-round majority decision win against Ruben Dario Casero at age 33 on August 2, 2025. He is on a 3-fight winning streak.
Some of Jerwin Ancajas' best fights have been against Jonas Sultan, McJoe Arroyo, Israel González, Petchwanchai Sor Visetkit, Wilner Soto, Armando Casa and Richie Mepranum.
Ancajas has 4 losses on his boxing record.
| # | Date | Opponent | Weight | Round | Method | Result |
|---|---|---|---|---|---|---|
43 | Aug 2, 2025 33 years, 7 months 37-4-2 (24) | Ruben Dario Casero | FT | 8 | MD | WIN |
42 | Jan 25, 2025 33 years 36-4-2 (24) | Richie Mepranum | FT | 2 | TKO | WIN |
41 | Sep 22, 2024 32 years, 8 months 35-4-2 (23) | Sukpraserd Ponpitak | BT | 5 | DQ | WIN |
40  | Feb 24, 2024 32 years, 1 months 34-4-2 (23) | 28 years, 1 months 18-1 (4) | FT | 9 | KO | LOSS |
39 | Jun 24, 2023 31 years, 5 months 34-3-2 (23) | Wilner Soto | BT | 5 | TKO | WIN For WBA |
38  | Oct 8, 2022 30 years, 9 months 33-3-2 (22) | 31 years, 2 months 14-0 (8) | SFL | 12 | UD | LOSS For IBF |
37 | Feb 26, 2022 30 years, 1 months 33-2-2 (22) | 30 years, 7 months 13-0 (8) | SFL | 12 | UD | LOSS Lost IBF |
36 | Apr 10, 2021 29 years, 3 months 33-1-2 (22) | Jonathan Javier Rodriguez | SFL | 12 | UD | WIN Defended IBF |
35 | Dec 7, 2019 27 years, 11 months 32-1-2 (22) | Miguel Gonzalez | SFL | 6 | TKO | WIN Defended IBF |
34 | May 4, 2019 27 years, 4 months 31-1-2 (21) | Ryuichi Funai | SFL | 6 | RTD | WIN Defended IBF |
33 | Sep 29, 2018 26 years, 8 months 30-1-2 (20) | Alejandro Santiago | SFL | 12 | SD | DRAW Defended IBF |
32  | May 26, 2018 26 years, 4 months 30-1-1 (20) | 26 years, 5 months 14-3 (8) | SFL | 12 | UD | WIN Defended IBF |
31  | Feb 3, 2018 26 years, 1 months 29-1-1 (20) | 21 years, 1 months 21-1 (8) | SFL | 10 | TKO | WIN Defended IBF |
30 | Nov 18, 2017 25 years, 10 months 28-1-1 (19) | Jamie Conlan | SFL | 6 | TKO | WIN Defended IBF |
29 | Jul 2, 2017 25 years, 6 months 27-1-1 (18) | Teiru Kinoshita | SFL | 7 | TKO | WIN Defended IBF |
28 | Jan 29, 2017 25 years 26-1-1 (17) | JosĂ© Alfredo RodrĂguez | SFL | 7 | RTD | WIN Defended IBF |
27  | Sep 3, 2016 24 years, 8 months 25-1-1 (16) | 30 years, 8 months 17-0 (8) | SFL | 12 | UD | WIN Won IBF |
26 | Nov 13, 2015 23 years, 10 months 24-1-1 (16) | Paul Apolinario | SFL | 1 | KO | WIN |
25 | May 30, 2015 23 years, 4 months 23-1-1 (15) | Juan Purisima | SFL | 9 | KO | WIN |
24 | Nov 23, 2014 22 years, 10 months 22-1-1 (14) | Fadhili Majiha | SFL | 3 | KO | WIN |
23 | Aug 23, 2014 22 years, 7 months 21-1-1 (13) | Rachmat Santoso | SFL | 1 | TKO | WIN |
22 | May 3, 2014 22 years, 4 months 20-1-1 (12) | Petchwanchai Sor Visetkit | SFL | 1 | KO | WIN |
21 | Feb 22, 2014 22 years, 1 months 19-1-1 (11) | Inthanon Sithchamuang | BT | 2 | KO | WIN |
20 | Dec 14, 2013 21 years, 11 months 18-1-1 (10) | Ryan Bongcawil | BT | 2 | KO | WIN |
19 | Aug 30, 2013 21 years, 7 months 17-1-1 (9) | Armando Casa | BT | 4 | TKO | WIN |
18 | Dec 21, 2012 20 years, 11 months 16-1-1 (8) | Runlong Xu | SFL | 4 | TKO | WIN |
17 | Sep 21, 2012 20 years, 8 months 15-1-1 (7) | Miguel Tamayo | SFL | 10 | TKO | WIN |
16 | Aug 12, 2012 20 years, 7 months 14-1-1 (6) | John Paul Bautista | SFL | 3 | RTD | WIN |
15 | Mar 17, 2012 20 years, 2 months 13-1-1 (5) | Mark Anthony Geraldo | SFL | 10 | MD | LOSS |
14 | Nov 23, 2011 19 years, 10 months 13-0-1 (5) | Rodel Quilaton | SFL | 12 | UD | WIN |
13 | Aug 27, 2011 19 years, 7 months 12-0-1 (5) | Jing Xiang | SFL | 10 | UD | WIN |
12 | Aug 6, 2011 19 years, 7 months 11-0-1 (5) | Jason Egera | SFL | 8 | TKO | WIN |
11 | Apr 16, 2011 19 years, 3 months 10-0-1 (4) | Rex Tito | SFL | 10 | UD | WIN |
10 | Feb 19, 2011 19 years, 1 months 9-0-1 (4) | Pit Anacaya | 10 | UD | WIN | |
9 | Dec 22, 2010 18 years, 11 months 8-0-1 (4) | Menard Zaragosa | 10 | UD | WIN | |
8 | Nov 20, 2010 18 years, 10 months 7-0-1 (4) | Julius Agcopra | 3 | TKO | WIN | |
7 | Sep 26, 2010 18 years, 8 months 6-0-1 (3) | Leo de Guia | 8 | UD | WIN | |
6 | Aug 7, 2010 18 years, 7 months 5-0-1 (3) | Redney Quezon | 6 | TKO | WIN | |
5 | Jun 26, 2010 18 years, 5 months 4-0-1 (2) | Leo de Guia | 6 | UD | WIN | |
4 | May 15, 2010 18 years, 4 months 3-0-1 (2) | Ervin Yamo | 6 | TD | DRAW | |
3 | Sep 25, 2009 17 years, 8 months 3-0 (2) | Jimmy Paypa | 4 | MD | WIN | |
2 | Sep 3, 2009 17 years, 8 months 2-0 (2) | Sherwin McDo Lungay | 1 | TKO | WIN | |
1 | Jul 27, 2009 17 years, 6 months 1-0 (1) | Reynaldo Buluan | 1 | TKO | WIN |
