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    vs.      
Jason Opalka is tied in the series against Jan Pieter Groenhof, 1-1.

event round table player one result player two
2001 World Championship261Opalka, Jason (1623)Won 2-0Groenhof, Jan Pieter (1505)
2001 World Championship970Opalka, Jason (1606)Lost 1-2Groenhof, Jan Pieter (1499)