Monthly record of otiba_'s rank (dan/kyu)
month dan/kyu win/lose win ratio
2019 /11 8.00 Kyu 2 win 1 lose .666
2019 /07 9.00 Kyu 1 win 1 lose .500
2019 /01 9.00 Kyu 1 win 3 lose .250
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