
Super Featherweight · Retired · USA
Ruben Castillo
At a glance
- Born
- December 19, 1957 (age 68)
- Nationality
- USA
- Birthplace
- Lubbock, Texas, USA
- Division
- Super Featherweight
- Height
- 5ft 7in (169 cm)
- Reach
- 65in (165 cm)
- Stance
- Orthodox
- Pro debut
- April 16, 1975
- Retired
- March 20, 1997
Story
Boxing Only · Updated Jul 8, 2026
Ruben Castillo, born on December 19, 1957, in Lubbock, Texas, emerged as a prominent figure in the featherweight and super featherweight divisions during his professional boxing career. Standing at 5 feet 7 inches with a 65-inch reach, Castillo fought with an orthodox stance. He began boxing at the age of 15, amassing an impressive amateur record of 40 wins and 2 losses.
Castillo made his professional debut on February 22, 1975, securing a fourth-round technical knockout against Frank Castro in Tucson, Arizona.
This victory marked the beginning of a career that spanned over two decades. During that time, he compiled a professional record of 67 wins, 10 losses, and 2 draws, with 35 victories coming by knockout.
Throughout his career, Castillo faced several world-class opponents and contended for world titles on multiple occasions. Notably, he challenged Hall of Famers such as Alexis Argüello, Salvador Sánchez, and Julio César Chávez. On January 20, 1980, Castillo fought Argüello for the WBC World Super Featherweight Title at the Community Center in Tucson, Arizona, but was stopped in the 11th round.
Subsequently, on April 12, 1980, he faced Salvador Sánchez for the WBC World Featherweight Title at the Civic Auditorium in Tucson, Arizona, losing by unanimous decision after 15 rounds.
Later, on April 19, 1985, Castillo squared off against Julio César Chávez for the WBC World Super Featherweight Title at the Forum in Inglewood, California, but suffered a sixth-round technical knockout defeat.
Castillo's resilience and skill were evident as he continued to compete against top-tier fighters. On February 20, 1983, in San Juan, Puerto Rico, he faced Juan Laporte for the WBC World Featherweight Title, enduring a unanimous decision loss after 12 rounds.
After a hiatus from the sport, Castillo returned to the ring and concluded his professional career on March 20, 1997, facing Rudy Zavala at the Country Club in Reseda, California. In this bout, a technical knockout stopped Castillo in the third round.
Beyond his in-ring achievements, Castillo was recognized for his rapid ascent in the boxing world, being named The Ring magazine's Progress of the Year fighter for 1976.