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

event round table player one result player two
2001 World Championship261Groenhof, Jan Pieter (1505)Lost 0-2Opalka, Jason (1623)
2001 World Championship970Groenhof, Jan Pieter (1499)Won 2-1Opalka, Jason (1606)