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    vs.      
Yoshihiko Ikawa is tied in the series against Masayo Ishikawa, 1-1.

event round table player one result player two
Grand Prix Hiroshima 20061228Ikawa, Yoshihiko (1589)Lost 1-2Ishikawa, Masayo (1609)
Grand Prix Kobe 2012429Ikawa, Yoshihiko (1817)Won 2-1Ishikawa, Masayo (1698)