He mainly fought in Mexico for first three years, then moved the main battlefield to the United States since 1983, and won the World Boxing Council (WBC) junior welterweight title by beating Lonnie Smith via the fifth round on a technical knockout (TKO) in 1986.
René Descartes | René Char | René Magritte | François-René de Chateaubriand | René Goscinny | Leon René | René Jacobs | Rene Daalder | Rene Russo | René Lévesque | Rene Requiestas | René Kollo | René Clausen | René Clair | Rene Portland | René Clemencic | Rene Auberjonois | René Higuita | Rene Goulet | René Girard | François-René de La Tour du Pin, Chambly de La Charce | Sherie Rene Scott | René Sergent | René Rémond | René Lussier | René Laennec | René II, Duke of Lorraine | Rene d'Harnoncourt | René de La Tour du Pin | Otis René |
Mauricio has fought many undefeated boxers, including Shane Mosley, Dingaan Thobela, Todd Foster, Dennis Holbæk Pedersen, Billy Schwer and Rene Arredondo.