Monthly record of ertan's rank (dan/kyu)
month dan/kyu win/lose win ratio
2020 /04 7.00 Kyu 3 win 2 lose .600
2020 /03 1.00 Dan 10 win 2 lose .833
2020 /02 3.00 Kyu 7 win 2 lose .777
2020 /01 2.00 Kyu 8 win 1 lose .888
2019 /12 4.61 Dan 17 win 2 lose .894
2019 /11 4.83 Dan 30 win 8 lose .789
2019 /10 5.11 Dan 31 win 5 lose .861
2019 /09 5.97 Dan 26 win 2 lose .928
2019 /08 2.00 Dan 11 win 2 lose .846
2019 /07 3.00 Dan 12 win 6 lose .666
2019 /06 4.52 Dan 22 win 3 lose .880
2019 /05 2.00 Kyu 8 win 3 lose .727
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