On September 13, 1979, the
Washington Diplomats of the
North American Soccer League signed Boyce who was eighteen at the time. He had been playing in Yugoslavia at the time. In the fall of 1980, the
Montreal Manic purchased Boyce's contract from the Dips. He played limited time with the Manic in 1981 before moving to the
Kansas City Comets for the 1981-1982
Major Indoor Soccer League season. In 1982, Boyce moved to the
San Jose Earthquakes. In the fall of 1982, the team was renamed the Golden Bay Earthquakes and spent the indoor season playing in the MISL. The Earthquakes returned to the NASL for the 1983 outdoor season. Boyce remained with the Earthquakes through the 1984 NASL season, the 1985 independent exhibition season, and continued with the Earthquakes as they entered the
Western Soccer Alliance in 1986. He continued to play for the Earthquakes through 1988. In 1990, he played for the
Salt Lake Sting in the
American Professional Soccer League. In 1992, Boyce played for the
San Jose Oaks. ==Coach==