He participated in the Pennsylvania state championships and was a finalist in both the Diamond Belt and Golden Glove Tournaments.
Leaving the amateur ranks in 1955, Cappuccino turned professional under the management of George Katz.
Asked why he didn't continue with his professional career, Cappuccino told Northeast Times reporter Joe Mason, "I decided that I had to either get out or get knocked on my heels.
He typically allowed a boxer in trouble to try to fight his way out of it, rather than calling an abrupt (and unpopular) technical knockout.
Asked about having Cappuccino as a referee, boxer Mickey Ward replied, "Frank was great and still is.
The most notable bout he judged was Michael Spinks versus Dwight Muhammad Qawi for the undisputed World Light Heavyweight Championship, fought on March 18, 1983.