Arroyo fought for nine years as an amateur boxer, winning several
Golden Glove tournaments as well as eight
AAU Regional Tournaments. As an amateur he had 110 wins and 15 losses. He worked up a record of 40 wins and 11 losses as a professional, and won the
IBF's world lightweight title by beating Charlie "Choo Choo" Brown in the 14th round on April 15, 1984. Arroyo, a late substitute for Cornelius Boza Edwards, staggered Brown with two blows to the head, prompting referee Larry Hazzard to stop the fight. On September 1, 1984, Arroyo successfully defended his title against Charlie "White Lightning" Brown, in a bout held in
Struthers, Ohio. The champion successfully defended his title once more against Terrence Alli, before losing to Jimmy Paul on April 4, 1985. ==Professional boxing record==