Fiori was born in Lynwood, California. During his childhood, Fiori would sneak through a barbed wire fence to a nine-hole course near his home in Downey, California, to practice his game.
Fiori, who grew up in Lynwood, California, would frequently sneak away during his childhood to play golf at a nearby nine-hole course in Downey, California, by crossing a barbed wire fence and using the surrounding area as a makeshift practice facility.