Monthly record of yamaaruki's rank (dan/kyu)
month dan/kyu win/lose win ratio
2015 /04 0.89 Kyu 17 win 11 lose .607
2015 /03 1.42 Kyu 26 win 25 lose .509
2015 /02 1.08 Kyu 13 win 11 lose .541
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