| | date | Lb | opponent | Lb | W-L-D | last 6 | location | | | | | | |
|---|
| | 2002-02-01 | 160 | Eugene Lopez | 159 | 9-19-1 | | Celebrity Theater, Phoenix, Arizona, United States | W | MD | 6 | 6 | | |
| ~ 57-56 | 57-57 | 58-55 ~
| |
| | 1994-04-08 | 142 | Jaime Ocegueda | 143 | 8-0-1 | | Hilton Hotel, Laughlin, Nevada, United States | L | DQ | 4 | | | |
| | 1994-03-01 | 146 | Jose Roberto Lopez | 146 | | | Phoenix, Arizona, United States | W | KO | 1 | | | |
| | 1993-03-22 | 139¾ | Carlos Gonzalez | 139¾ | 35-0-0 | | Great Western Forum, Inglewood, California, United States | L | TKO | 1 | 12 | | |
| ~ time: 2:22 | referee: Raul Caiz | judge: Teofilo Regus | judge: Tomas Vasquez | judge: William Lerch ~
~ WBO light welterweight title ~ | |
| | 1992-01-18 | 142½ | Rodney Moore | 140¾ | 29-6-2 | | Pennsylvania Hall, Philadelphia, Pennsylvania, United States | L | PTS | 10 | 10 | | |
| | 1991-08-29 | 146 | Alberto Castro | 145 | 2-3-0 | | Marriott Hotel, Irvine, California, United States | W | KO | 5 | 10 | | |
| ~ time: 2:40 | referee: Lou Moret ~
Castro's record fell to 28-11, according to the Los Angeles Times.
| |
| | 1991-03-12 | 143 | Martin Garcia | 142 | 8-16-0 | | Phoenix, Arizona, United States | W | KO | 3 | | | |
| | 1990-08-11 | 140 | Hector Camacho | 140 | 37-0-0 | | Caesars Tahoe, Stateline, Nevada, United States | L | UD | 12 | 12 | | |
| ~ referee: Richard Steele | judge: Doug Tucker 109-118 | judge: Cindy Bartin 110-117 | judge: Keith MacDonald 109-118 ~
~ WBO light welterweight title ~ | |
| | 1990-03-10 | 143 | Danny Vargas | 143¼ | 13-11-0 | | Convention Center, Albuquerque, New Mexico, United States | W | TKO | 5 | | | |
| ~ referee: Neffie Quintana | judge: Walter Brown | judge: Rocky Burke | judge: Stan Gallup ~
| |
| | 1990-02-22 | 142¾ | Pedro Laza | 142¾ | 30-5-0 | | Civic Plaza, Phoenix, Arizona, United States | W | TKO | 3 | 10 | | |
| ~ time: 3:00 | referee: Al Munoz ~
| |
| | 1989-11-03 | 141¾ | Juan Manuel Muniz | 140 | 2-2-0 | | Phoenix, Arizona, United States | W | TKO | 4 | 10 | | |
| ~ time: 2:02 ~
| |
| | 1989-07-09 | 145 | James McGirt | 144½ | 42-2-1 | | Imperial Resort Hotel, Swan Lake, New York, United States | L | UD | 10 | 10 | | |
| ~ 2-8 | 2-8 | 3-7 ~
| |
| | 1989-04-07 | 145 | Derrick McGuire | 143 | 13-6-0 | | Las Vegas, Nevada, United States | W | UD | 10 | 10 | | |
| | 1989-03-10 | 150 | Sammy Brooks | 150 | 13-6-0 | | Las Vegas, Nevada, United States | W | KO | 7 | | | |
| | 1989-02-10 | 144 | Joseph Alexander | 140 | 13-11-1 | | Las Vegas, Nevada, United States | W | TKO | 2 | | | |
| | 1988-11-19 | 146 | Ron Johnson | 147 | 25-15-2 | | Showboat Hotel & Casino, Las Vegas, Nevada, United States | W | TKO | 9 | 10 | | |
| ~ time: 0:51 ~
| |
| | 1988-10-22 | 147 | Miguel Angel Dominguez | 148 | 29-5-0 | | Bally's Las Vegas, Las Vegas, Nevada, United States | W | TKO | 7 | 8 | | |
| ~ time: 2:57 | 59-54 | 58-55 | 57-56 ~
Baltazar deducted a point for a low punch.
| |
| | 1985-12-18 | 142 | Darrell Cottrell | 142½ | 7-7-0 | | Arco Arena, Sacramento, California, United States | W | KO | 2 | | | |
| | 1984-07-08 | 136 | Roger Mayweather | 136 | 17-1-0 | | Country Club, Reseda, California, United States | W | UD | 10 | 10 | | |
| ~ referee: Lou Moret 98-93 | judge: Marty Denkin 96-94 | judge: Ed DeFierro 96-95 ~
| |
| | 1984-05-23 | 140½ | Lupe Rocha | 136 | 1-5-0 | | Civic Auditorium, Santa Monica, California, United States | W | KO | 2 | | | |
| | 1983-07-24 | 137 | Robin Blake | 136¼ | 20-0-0 | | Las Vegas, Nevada, United States | L | TKO | 9 | 10 | | |
| ~ referee: Davey Pearl ~
| |
| | 1983-06-17 | 139½ | Roque Montoya | 137 | 6-4-2 | | Olympic Auditorium, Los Angeles, California, United States | W | PTS | 10 | 10 | | |
| ~ referee: Vince Delgado 99-91 | judge: James Jen-Kin 99-91 | judge: Rudy Jordan 97-94 ~
| |
| | 1983-02-27 | 134 | Howard Davis, Jr | 133¾ | 21-1-0 | | Resorts International, Atlantic City, New Jersey, United States | L | UD | 10 | 10 | | |
| Davis was knocked down in the 5th and 8th rounds. Scoring: 8-2, 5-4-1, 7-3
| |
| | 1982-09-23 | | Jesus De la Cruz | | 1-2-0 | | Olympic Auditorium, Los Angeles, California, United States | W | KO | 1 | | | |
| | 1982-06-26 | | Raul Bencomo | | 1-4-0 | | Los Angeles, California, United States | W | KO | 2 | | | |
| | 1982-05-30 | 137¼ | Ricky Samudio | 140½ | 3-3-1 | | The Aladdin, Las Vegas, Nevada, United States | W | PTS | 10 | 10 | | |
| | 1982-01-30 | | Felix Favella | | 0-2-0 | | Olympic Auditorium, Los Angeles, California, United States | W | KO | 4 | | | |
| | 1981-10-22 | | Manuel Abedoy | | 17-8-2 | | Olympic Auditorium, Los Angeles, California, United States | W | PTS | 10 | 10 | | |
| | 1981-09-24 | | Roberto Garcia | | 11-29-4 | | Olympic Auditorium, Los Angeles, California, United States | W | KO | 4 | | | |
| | 1981-07-31 | | Roberto Garcia | | 11-27-4 | | Las Vegas, Nevada, United States | W | KO | 8 | | | |
| | 1981-06-19 | 135½ | Sonny Perez | 138½ | | | Showboat Hotel & Casino, Las Vegas, Nevada, United States | W | TKO | 6 | 10 | | |
| ~ referee: Davey Pearl ~
Cut Eye Stoppage
| |
| | 1981-04-30 | | Darrell Stovall | | 7-3-0 | | Los Angeles, California, United States | W | PTS | 10 | 10 | | |
| | 1981-03-19 | | Raul Bencomo | | | | Los Angeles, California, United States | W | KO | 5 | | | |
| | 1980-10-30 | | Jesus Rodriguez | | 7-11-1 | | Olympic Auditorium, Los Angeles, California, United States | D | TD | 4 | | | |
| | 1980-09-25 | | Eddie Ballaran | | 4-4-1 | | Los Angeles, California, United States | W | KO | 4 | | | |
| | 1980-08-28 | | Rosario Gonzalez | | 0-2-0 | | Olympic Auditorium, Los Angeles, California, United States | W | KO | 1 | | | |
| | 1980-07-10 | 138 | Ruben Martinez | 140 | 2-9-1 | | Olympic Auditorium, Los Angeles, California, United States | W | TKO | 1 | 10 | | |
| | 1980-05-15 | | Juan Campos | | | | Olympic Auditorium, Los Angeles, California, United States | W | KO | 2 | | | |
| | 1980-02-19 | | Max Cervantes | | 1-4-1 | | Sacramento, California, United States | W | KO | 1 | | | |
| | 1979-11-08 | | Clemente Enriquez | | 4-2-0 | | Olympic Auditorium, Los Angeles, California, United States | W | KO | 1 | | | |
| | 1979-09-20 | | Clemente Enriquez | | 4-1-0 | | Olympic Auditorium, Los Angeles, California, United States | W | TKO | 5 | | | |
| | 1979-06-21 | 134½ | Jaime Nava | 137½ | 5-8-0 | | Olympic Auditorium, Los Angeles, California, United States | W | PTS | 6 | 6 | | |
| | 1979-05-10 | | Eric Bonilla | | 7-8-3 | | Olympic Auditorium, Los Angeles, California, United States | W | KO | 2 | | | |
| | 1979-04-19 | | Roberto Garcia | | 1-7-1 | | Olympic Auditorium, Los Angeles, California, United States | W | KO | 2 | | | |
| | 1979-03-22 | | Julio Alfonso | | 1-2-0 | | Olympic Auditorium, Los Angeles, California, United States | W | KO | 2 | | | |
| | 1979-02-08 | 131 | Art Silvera | 132 | 2-8-1 | | Olympic Auditorium, Los Angeles, California, United States | W | KO | 1 | | | |
