Monthly record of usui000815000's rank (dan/kyu)
month dan/kyu win/lose win ratio
2021 /05 9.00 Kyu 1 win 0 lose 1.00
2017 /06 7.00 Kyu 3 win 1 lose .750
2017 /05 2.26 Kyu 8 win 6 lose .571
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