D'Amelio was born in Italy, but moved to the United States at some point during his early youth. He grew up on Long Island, New York and attended Baldwin High School. He began college at Adelphi University in 1976. He took a year off to play for the U.S. U-21 national team in 1977 then returned to college at the University of Evansville. He spent the 1978 and 1979 seasons with the Purple Aces. He was inducted into the Evansville Athletic Hall of Fame in 1992. In 1980, the Philadelphia Fury selected D'Amelio in the first round of the North American Soccer League's college draft. He played eight games for the Fury. In the fall of 1981, he moved to the Fort Lauderdale Strikers and played the 1980–1981 NASL season before being released. He then moved to New York United for the 1981 American Soccer League season. United went to the championship game where it fell to the Carolina Lightnin'. He retired from playing professionally at the end of the season.
Coaching
D'Amelio began his coaching career as an assistant coach with Evansville in the fall of 1980 as he finished his bachelor's degree in languages. In 1982, he coached the Reitz Memorial High Schoolsoccer team to the semifinals of the Indiana State championship. However, it was an unpaid position and D'Amelio was making a living as a construction worker with Traylor Brothers Construction Company. In March 1983, his brother and sister were able to get him a position as a blackjack dealer in Las Vegas at a considerable increase in salary compared to his construction work. He lived in Nevada for only a year or two before moving to East Rockaway, New York where he worked for KLM. He also played at the amateur level and was an assistant coach with Baldwin High School. In 1993, he returned to Las Vegas. In 1998, he became an assistant coach at UNLV, a position he held for eight seasons. In 2003, he became the head coach of the Las Vegas Strikers in the National Premier Soccer League. The Strikers folded following the 2006 season. He also coached at Valley High School. In 2006, he coached the Las Vegas Toros in the National Alliance Soccer League.
