 While playing with the St. Louis Blues during the 1993–94 season, he set a new record for most saves by a Blues goaltender against the Boston Bruins with 46.After spending a few seasons playing in the International Hockey League, Ice Hockey Superleague, and Germany2, Hrivnak joined Ässät in the Finnish league Liiga to compete in their 1999–2000 season.He played 34 games in two seasons with Ässät.