|Date of birth||September 28, 1956|
|Place of birth||Bronx, United States|
|1974-1975||Ulster County Community College|
|1978||New York Eagles||22||(6)|
|1978-1979||Pittsburgh Spirit (indoor)||23||(10)|
|1979-1981||Hartford Hellions (indoor)||53||(10)|
|1981||New York Eagles|
|1983-1984||New York Arrows (indoor)||25||(8)|
|1984||Fort Lauderdale Sun|
|1986-1987||New York Express (indoor)||6||(0)|
|1987||Louisville Thunder (indoor)|
|* Senior club appearances and goals counted for the domestic league only.
† Appearances (Goals).
Mulroy grew up in New York playing in the Blau-Weiss Gottschee youth system. He attended Ulster County Community College where he was a 1974 and 1975 National Junior College All American. In 1993, he was inducted into the NJCAA Hall of Fame. In 1976, he played for the Miami Toros of the North American Soccer League. In 1977, he played as a defensive midfielder for the Cleveland Cobras of the American Soccer League. In 1978, he went to the ASL's New York Eagles for one season before returning to the Cobras in 1979. During the winter of 1978-1979, he played for the Pittsburgh Spirit during the inaugural season of the Major Indoor Soccer League. He was a second team All-Star. He later played for the Hartford Hellions and New York Arrows of MISL. In 1982, he tried out with the Fort Lauderdale Strikers, but if he was signed he played no first team games. In 1984, he played for the Fort Lauderdale Sun in the United Soccer League. Although he normally played as a defender, on June 3, 1984, he played goalkeeper for the Sun in a 4-2 win over the Buffalo Storm after the Jim Tietjens the Suns' only goalkeeper went down injured. In September 1986, he signed with the short lived New York Express of MISL. The team folded during the season. He then finished the season with the Louisville Thunder of the American Indoor Soccer Association and retired.
Post playing career
Since retirement he founded Soccer Marketing & Promotions, Inc. and created Se Habla Futbol. He served on the Executive Committee for the 1996 Olympic Soccer Games and was named Official Spokesperson for World Cup USA ’94.