Monthly record of Sato's rank (dan/kyu)
month dan/kyu win/lose win ratio
2013 /11 9.00 Kyu 1 win 2 lose .333
2013 /09 2.73 Kyu 11 win 10 lose .523
2013 /07 8.00 Kyu 2 win 5 lose .285
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