Robert Guerrero (38-6-1, 20) was born in Gilroy, California, U.S. on March 27, 1983. At the age of 18 years on April 22, 2001, he made his professional boxing debut against Alejandro Cruz, winning the fight via 4-round unanimous decision.
On his 21st career fight at 23 years old, Guerrero became a featherweight world champion on September 2, 2006 after defeating Eric Aiken via 8th-round retirement to win the IBF title.
He then went on to become world champion at the super-featherweight weight class as well, winning the IBF title against Spend Abazi via 9th-round TKO on February 23, 2007.
Guerrero's last fight was a 10-round unanimous decision win against Andre Berto at age 40 on December 16, 2023. He is on a 5-fight winning streak.
Some of Robert Guerrero's best fights have been against Andre Berto, Michael Katsidis, Yoshihiro Kamegai, Joel Casamayor, Victor Ortiz, Gamaliel Díaz and Jason Litzau.
Guerrero has 6 losses on his boxing record.
| # | Date | Opponent | Weight | Round | Method | Result |
|---|---|---|---|---|---|---|
47  | Dec 16, 2023 40 years, 8 months 38-6-1 (20) | 40 years, 3 months 32-5 (24) | WL | 10 | UD | WIN |
46  | Aug 21, 2021 38 years, 4 months 37-6-1 (20) | 34 years, 6 months 32-6-3 (25) | 10 | UD | WIN | |
45 | Sep 28, 2019 36 years, 6 months 36-6-1 (20) | Gerald Thomas | 10 | UD | WIN | |
44 | Mar 9, 2019 35 years, 11 months 35-6-1 (20) | Hevinson Herrera | 5 | RTD | WIN | |
43 | Dec 1, 2018 35 years, 8 months 34-6-1 (19) | Adam Mate | 2 | KO | WIN | |
42  | Jul 15, 2017 34 years, 3 months 33-6-1 (18) | 27 years, 7 months 26-0-1 (18) | 3 | TKO | LOSS | |
41 | Aug 27, 2016 33 years, 5 months 33-5-1 (18) | David Emanuel Peralta | 12 | SD | LOSS | |
40  | Jan 23, 2016 32 years, 9 months 33-4-1 (18) | 27 years, 10 months 31-0 (18) | WL | 12 | UD | LOSS For WBC Vacant |
39 | Jun 6, 2015 32 years, 2 months 33-3-1 (18) | Aaron Martinez | 10 | SD | WIN | |
38  | Mar 7, 2015 31 years, 11 months 32-3-1 (18) | 26 years, 3 months 24-0 (21) | WL | 12 | UD | LOSS For WBA |
37  | Jun 21, 2014 31 years, 2 months 32-2-1 (18) | 31 years, 7 months 24-1-1 (21) | 12 | UD | WIN | |
36  | May 4, 2013 30 years, 1 months 31-2-1 (18) | 36 years, 2 months 43-0 (26) | WL | 12 | UD | LOSS For WBC, The Ring Vacant |
35 | Nov 24, 2012 29 years, 7 months 31-1-1 (18) | 29 years, 2 months 28-1 (22) | WL | 12 | UD | WIN Defended WBC Interim |
34 | Jul 28, 2012 29 years, 4 months 30-1-1 (18) | Selçuk Aydın | WL | 12 | UD | WIN Won WBC InterimVacant |
33  | Apr 9, 2011 28 years 29-1-1 (18) | 30 years, 7 months 27-3 (22) | LT | 12 | UD | WIN Won WBA, WBO InterimVacant |
32 | Nov 6, 2010 27 years, 7 months 28-1-1 (18) | Vicente Escobedo | LT | 10 | UD | WIN |
31  | Jul 31, 2010 27 years, 4 months 27-1-1 (18) | 39 years 37-4-1 (22) | 10 | UD | WIN | |
30 | Apr 30, 2010 27 years, 1 months 26-1-1 (18) | Roberto David Arrieta | 8 | TKO | WIN | |
29 | Aug 22, 2009 26 years, 4 months 25-1-1 (17) | Malcolm Klassen | SFT | 12 | UD | WIN Won IBF |
28 | Jun 12, 2009 26 years, 2 months 24-1-1 (17) | Efren Hinojosa | 8 | RTD | WIN | |
27  | Mar 7, 2009 25 years, 11 months 23-1-1 (16) | 21 years, 8 months 23-0 (17) | 2 | NC | NC | |
26 | Jan 24, 2009 25 years, 9 months 23-1-1 (16) | Edel Ruiz | 1 | TKO | WIN | |
25  | Feb 29, 2008 24 years, 11 months 22-1-1 (15) | 24 years, 8 months 23-1 (19) | FT | 8 | KO | WIN Defended IBF |
24 | Nov 3, 2007 24 years, 7 months 21-1-1 (14) | Martin Honorio | FT | 1 | TKO | WIN Defended IBF |
23 | Feb 23, 2007 23 years, 10 months 20-1-1 (13) | Spend Abazi | FT | 9 | TKO | WIN Won IBF Vacant |
22  | Nov 4, 2006 23 years, 7 months 19-1-1 (12) | 25 years, 11 months 27-9-2 (18) | 12 | UD | NC | |
21 | Sep 2, 2006 23 years, 5 months 19-1-1 (12) | Eric Aiken | FT | 8 | RTD | WIN Won IBF |
20  | Jun 23, 2006 23 years, 2 months 18-1-1 (11) | 25 years, 4 months 20-5-2 (9) | FT | 6 | KO | WIN |
19 | May 18, 2006 23 years, 1 months 17-1-1 (10) | Sandro Marcos | 3 | TKO | WIN | |
18 | Dec 2, 2005 22 years, 8 months 16-1-1 (9) | 24 years, 9 months 19-5-2 (9) | FT | 12 | SD | LOSS |
17 | Sep 16, 2005 22 years, 5 months 16-0-1 (9) | Sammy Ventura | FT | 1 | KO | WIN |
16 | Apr 1, 2005 22 years 15-0-1 (8) | Adrian Valdez | FT | 12 | TKO | WIN |
15 | Dec 9, 2004 21 years, 8 months 14-0-1 (7) | Cesar Figueroa | FT | 4 | KO | WIN |
14 | Jun 3, 2004 21 years, 2 months 13-0-1 (6) | Enrique Sanchez | 8 | TKO | WIN | |
13 | Apr 24, 2004 21 years 12-0-1 (5) | Juan Polo Perez | 2 | TKO | WIN | |
12 | Mar 14, 2004 20 years, 11 months 11-0-1 (4) | Julian Rodriguez | 1 | TD | DRAW | |
11 | Jun 8, 2003 20 years, 2 months 11-0 (4) | Jose Luis Tula | 1 | TKO | WIN | |
10 | May 4, 2003 20 years, 1 months 10-0 (3) | David Vasquez | 1 | TKO | WIN | |
9 | Dec 20, 2002 19 years, 8 months 9-0 (2) | Jose Alfonso Rodriguez | 2 | TKO | WIN | |
8 | Jul 3, 2002 19 years, 3 months 8-0 (1) | Freddy Castro | 6 | UD | WIN | |
7 | Apr 14, 2002 19 years 7-0 (1) | Marcos Badillo | 6 | UD | WIN | |
6 | Mar 10, 2002 18 years, 11 months 6-0 (1) | Robert Enriquez | 4 | UD | WIN | |
5 | Feb 8, 2002 18 years, 10 months 5-0 (1) | Joaquin Candelario | 4 | UD | WIN | |
4 | Jan 25, 2002 18 years, 9 months 4-0 (1) | Arthur Trevino | 4 | UD | WIN | |
3 | Nov 2, 2001 18 years, 7 months 3-0 (1) | Oscar Rosales | 4 | UD | WIN | |
2 | Sep 29, 2001 18 years, 6 months 2-0 (1) | Javier Gonzalez | 3 | TKO | WIN | |
1 | Apr 22, 2001 18 years 1-0 (0) | Alejandro Cruz | 4 | UD | WIN |
