Monthly record of masamasa1970's rank (dan/kyu)
month dan/kyu win/lose win ratio
2017 /06 9.00 Kyu 1 win 2 lose .333
2017 /05 5.46 Kyu 11 win 25 lose .305
2017 /04 4.54 Kyu 11 win 18 lose .379
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