Oscar De La Hoya is a retired Mexican-American professional boxer who had a successful career in the sport. He had a total of 45 fights, with 39 wins and 6 losses.

De La Hoya's first professional fight was in 1992, where he won by a technical knockout in the first round against Lamar Williams. He went on to win his next 23 fights, including a victory over Julio Cesar Chavez in 1996, which was considered a major upset at the time.

De La Hoya suffered his first loss in 1999, when he faced Felix Trinidad in a highly anticipated bout. Despite dominating the early rounds, De La Hoya lost a controversial split decision, with many believing he was the rightful winner.

In 2000, De La Hoya bounced back with a victory over Shane Mosley, but he suffered another loss in 2002, this time against Bernard Hopkins. De La Hoya moved up to the middleweight division to face Hopkins, but he was outmatched and lost by a technical knockout in the ninth round.

De La Hoya continued to fight and win against top opponents, including a victory over Fernando Vargas in 2002 and a win over Ricardo Mayorga in 2006. However, his career came to an end in 2008, when he faced Manny Pacquiao in a highly publicized bout. De La Hoya lost by technical knockout in the eighth round, and he announced his retirement from boxing soon after.

Overall, De La Hoya had a successful career, with wins over top opponents like Chavez, Mosley, and Vargas. His losses to Trinidad and Hopkins were controversial, but they did not diminish his legacy as one of the greatest boxers of his time.