1977
- March 17- Jimmy Young defeats George Foreman by a twelve round unanimous decision at the Roberto Clemente Coliseum, San Juan, Puerto Rico. Yet Ali still refused to give Young a title fight rematch. Immediately after the fight, Foreman has a religious experience, becomes a new-born Christian and retires from boxing.
- April 23- In a fight without any titles at stake, WBC world Bantamweight champion Carlos Zarate defeats WBA world champion Alfonso Zamora in four rounds at Inglewood.
- May 11- Ken Norton knocks out former Olympian Duane Bobick in the first round at the Madison Square Garden, New York.
- May 21- Wilfredo Gómez wins the first of three world titles by knocking out WBC world Jr. Featherweight champion Dong Kyun Yum in twelve rounds at San Juan.
- July 30- Carlos Monzón recovers from a second round knockdown and retains his world Middleweight championship with a fifteen round unanimous decision against Rodrigo Valdez in their rematch, at Monte Carlo, Monaco. Monzon broke the all time record of defenses at the Middleweight division with fourteen successful defenses, and he retired permanently after this fight.
- September 29- Muhammad Ali retains the world Heavyweight championship with a fifteen round unanimous decision over Earnie Shavers in New York.
- November 5- Rodrigo Valdez wins the undisputed world Middleweight championship left vacant by archrival Carlos Monzón, outpointing Bennie Briscoe by unanimity after fifteen rounds in Campioni d' Italia, Italy.
Read more about this topic: Boxing In The 1970s