Monthly record of ryottan's rank (dan/kyu)
month dan/kyu win/lose win ratio
2013 /09 1.15 Kyu 31 win 51 lose .378
2013 /08 1.73 Kyu 99 win 105 lose .485
2013 /07 4.00 Kyu 6 win 8 lose .428
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