As a player he was the all-time leader in points and goals in professional indoor soccer, and made 6 appearances for the Canada national team.
However, he made his intentions to retire known to the Storm and on October 11, 2004, the team traded Marinaro to the Cleveland Force in exchange for cash.
The Storm did this in order to allow him to retire with the Force, the team with which he began his career.During his 19-year indoor career, Marinaro scored 1,233 goals and added 702 assists for 1,935 points in just 685 games.
On January 31, 2006, John Carroll University hired Marinaro as the head coach of the men's soccer team.
He departed as JCU's all-time winningest coach in the history of the Men's Soccer program with a 185-82-30 overall record while going 98-23-13 in the Ohio Athletic Conference (OAC).