1972-07-30 Enrique Pinder w pts 15 Rafael Herrera, New City Gym, Panama City, Panama - WORLD
1972-07-30 Enrique Pinder w pts 15 Rafael Herrera, New City Gym, Panama City, Panama - WORLD. Referee: Waldemar Schmidt. Scorecards: 147-142, 147-143, 149-138. Boxing a smart, tactical battle, Pinder (118) generally stayed on the outside of the flat-footed Herrera (117¾) to pile up points while keeping himself away from any close-quarter work where the champion could shine. Although being caught by the occasional heavy blow, in the main Pinder’s agility kept him out of trouble. Despite a last-ditch effort from Herrera, who was cut on the right eye in the 13th, Pinder kept his cool to pick up a well-deserved unanimous decision.
Pinder forfeited WBC recognition in December after failing to defend against the leading challenger, Rodolfo Martinez, within the stipulated period. On 6 January 1973, the WBC announced that Martinez would meet Agustin Senin for the vacant title within three months. However, the unbeaten Senin, ranked at number three by The Ring magazine, had already decided to retire, stating that he would never box as a pro again. An aggressive, hard-hitting southpaw, Senin had won the European title from Alan Rudkin and had defended it twice before making his decision. When the EBU title was vacated, Johnny Clark took over Senin’s high ranking on outpointing Franco Zurlo (w pts 15 at the Albert Hall, London on 17 April 1973) to become the new champion, before being forced to retire five fights later when suffering a detached retina.
After Senin declined the opportunity, it was Rafael Herrera who was chosen to be Martinez's opponent.