During this time, he also joined short-lived Roller Hockey International (RHI) league, where he played for four seasons with the Calgary Radz, San Diego Barracudas, Oakland Skates and Sacramento River Rats.
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Krywulak turned pro during the 1997–98 season, playing in 3 games with the San Diego Gulls of the minor professional West Coast Hockey League (WCHL).
Jason Mraz | Jason Alexander | David Jason | Jason Robards | Jason Grimshaw | Jason Kidd | Jason Kenney | Jason Isaacs | Jason Statham | Jason Newsted | Jason | Jason Priestley | Jason Aldean | Jason Scott Lee | Jason Schwartzman | Jason Mewes | Jason Ritter | Jason Donovan | Jason Bourne | Jason Aaron | Jason Williams | Jason Reeves | Jason McCoy | Jason McAteer | Jason Derulo | Jason Blaine | Jason Biggs | Freddy vs. Jason | Jason Williams (basketball, born 1975) | Jason Voorhees |