Monthly record of ertan's rank (dan/kyu)
month dan/kyu win/lose win ratio
2020 /09 10 Kyu 0 win 2 lose .000
2020 /06 4.00 Kyu 6 win 3 lose .666
2020 /04 5.90 Dan 27 win 12 lose .692
2020 /03 6.97 Dan 31 win 6 lose .837
2020 /02 6.29 Dan 22 win 7 lose .758
2020 /01 7.22 Dan 41 win 3 lose .931
2019 /12 6.08 Dan 29 win 5 lose .852
2019 /11 6.00 Dan 15 win 1 lose .937
2019 /10 2.00 Dan 11 win 5 lose .687
2019 /09 6.19 Dan 17 win 1 lose .944
2019 /08 2.75 Dan 17 win 14 lose .548
2019 /07 3.00 Dan 12 win 6 lose .666
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