Age 17 boxer started his career on November 1957 building a record of 31-12-0 over 9 years, last fighting 0 ago in December 1966. Valdez's longest KO streak is 3 fights long out of his 43 pro career fights.
An explosive pro debut saw Valdez face Tony Meza in a 6 round debut fight. Danny became only the 8th person to stop Meza shy of the full distance, stopping him in the 4th. Continuing on from his debut, Valdez had an impressive start to his career as he went on to fight 21 fights including 2 times in 1957, 9 times in 1958 and 10 times through 1959 and 1960 against fighters such as Bobby Cervantes, Ricardo lorenzo Gonzalez and Ricardo lorenzo Gonzalez.
Taking the first knock of his career, Valdez fought Luis Sanchez on December 9th, 1957 and was defeated by Sanchez. Valdez's technical boxing ability was put to the test as he got outpointed in the 6 round fight against the better man. Sanchez gave Valdez his first professional loss of his 2 fight career to date. Valdez's win streak of 1 rose to 15 following 14 wins against boxers such as Bobby Cervantes, Ricardo lorenzo Gonzalez, Juan Ramirez and 11 others.
On October 8th, 1960, Valdez went into action again and beat Ricardo lorenzo Gonzalez taking the winning record to 16 wins. Becoming the first person to stop Ricardo lorenzo Gonzalez, Valdez beat Gonzalez via TKO in the 5th round of a 10 round fight. Valdez's wins continued and went from 16 wins to 17 after he then defeated Boots Monroe.
Valdez's next defeat of his career came against Davey Moore on April 8th, 1961 taking his career record to 17-6-0. Being outclassed early, Valdez struggled to get going in this 15 round fight and received the first stoppage defeat of his career at the hands of Moore. The fight went 1 rounds before ending via a KO defeat.
Pushing his career further, Valdez fought Tony Herrera on June 15th, 1961 adding to his winning record. Valdez was the first person to stop Tony Herrera and he did it in the 8th round via KO. 5 wins followed where Valdez went on to fight Gil Cadilli, Luis Hernandez and Pulga Serrano amongst others, prolonging his win streak.
Valdez lost to Sugar Ramos in his next fight. Taking place on May 11th, 1962, Valdez's career record after this fight stood at 22-8-0. Valdez was stopped by Sugar Ramos in the 7th round of a 10 round fight via TKO. It was Valdez's 2nd stoppage defeat in his career.
The next defeat of Valdez's career came against Alex Benitez on December 5th, 1966. This took his career record to 31-12-0. It took 43 pro fights for Valdez to decide it was now too much to continue fighting. Valdez's 10 round defeat to Benitez was Valdez's final fight as a pro.