 Sundvold's best year as a professional came during the 1986-87 season as a member of the Spurs, appearing in 76 games and averaging 11.2 ppg.Selected by the Miami Heat in the 1988 NBA Expansion Draft, Sundvold played more of a bench role but still led the NBA in three point shooting percentage in 1989, hitting more than 50-percent of his attempts.He also participated in the NBA All Star Three Point Contest in 1989 and 1990.