Monthly record of ryoyan21's rank (dan/kyu)
month dan/kyu win/lose win ratio
2017 /09 8.00 Kyu 2 win 10 lose .166
2017 /08 4.35 Kyu 11 win 18 lose .379
2017 /07 7.00 Kyu 3 win 6 lose .333
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