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    vs.      
Geoffrey Siron leads the series against Jelger Wiegersma, 2-0.

event round table player one result player two
Grand Prix London 2003439Siron, Geoffrey (1595)Won 2-1Wiegersma, Jelger (1904)
Grand Prix Krakow 20074519Siron, Geoffrey (1886)Won 2-1Wiegersma, Jelger (1859)