Minimumweight
| Name: | Date: | Location: | Defenses: |
|---|---|---|---|
| Rafael Torres def. Yamil Caraballo |
August 30, 1989 | Santo Domingo, Dominican Republic | 1 |
| Title vacated | 1993 | Torres' only defense was against Husni Ray on July 31, 1990 in Jakarta,Indonesia. | |
| Paul Weir def. Fernando Martínez |
May 15, 1993 | Glasgow, Scotland, United Kingdom | 1 |
| Title vacated | 1993 | Weir vacated the title to move up to light flyweight. His only defense was against Lindi Memani on October 25, 1993 in Glasgow, Scotland, United Kingdom. | |
| Alex Sánchez def. Orlando Malone |
December 22, 1993 | El Condado, San Juan, Puerto Rico | 6 |
| Ricardo López | August 23, 1997 | New York City, New York, United States | 0 |
| Title vacated | 1997 | López vacated all his titles at minimumweight to move up to light flyweight. | |
| Eric Jamili def. Mickey Cantwell |
December 19, 1997 | London, England, United Kingdom | 0 |
| Kermin Guardia | May 30, 1998 | Las Vegas, Nevada, United States | 3 |
| Title vacated | 2001 | Guardia vacated the title to move up to light flyweight. His last defense was against Juan Alfonso Keb Baas on April 6, 2001 in Mérida, Yucatán, Mexico. | |
| Jorge Mata def. Reynaldo Frutos |
June 29, 2002 | Palma, Majorca, Spain | 1 |
| Eduardo Ray Marquez | March 28, 2003 | Madrid, Spain | 0 |
| Iván Calderón | May 3, 2003 | Las Vegas, Nevada, United States | 11 |
| Title vacated | 2007 | Calderón vacated the title to move up to light flyweight. His last defense of the title was on April 28, 2007 against Ronald Barrera in Barranquilla, Colombia. | |
| Donnie Nietes def. Pornsawan Kratingdaenggym |
September 30, 2007 | Cebu City, Cebu, Philippines | 3 |
Read more about this topic: List Of WBO World Champions