Early in her career, Roca competed with Andrew Ouellette. She later teamed up with Donald Adair. Their most successful season was 1985–86, in which they won 1985 Skate Canada International, 1985 Skate America and the 1986 U.S. national title. She also achieved her highest World placement, 6th at the 1986 World Championships. The following season, they won the U.S. silver medal. He decided to retire ten days before the 1987 World Championships, stunning Roca who had hoped to qualify for the 1988 Winter Olympics.