Monthly record of ohtasonkei's rank (dan/kyu)
month dan/kyu win/lose win ratio
2013 /09 2.55 Kyu 15 win 14 lose .517
2013 /08 1.37 Kyu 54 win 28 lose .658
2013 /07 2.06 Kyu 26 win 18 lose .590
2013 /06 2.25 Kyu 58 win 30 lose .659
2013 /05 2.80 Kyu 44 win 34 lose .564
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