Mack has won more than 70 titles around the world and was one of the first Americans to compete extensively overseas, helping pave the way for bowling to become a more global sport. Through the late 1990s and into the 2000s, before there was a World Bowling Tour, Mack won titles on five continents, in more than 30 countries, and earned the World Bowler of the Year Award from Bowlers Journal three times.

Among his titles are the 2003, 2004 and 2006 Bahrain Open, 2003 Indonesian International Open and 2002 Qatar Open, events now recognized by the Professional Bowlers Association as PBA Tour titles. He made one appearance on Team USA, winning gold in trios and silver in singles, team, all-events and Masters at the 2003 World Bowling Men’s Championships in Malaysia, and he earned United States Olympic Committee Male Athlete of the Year for Bowling.