Monthly record of Coper's rank (dan/kyu)
month dan/kyu win/lose win ratio
2017 /09 1.00 Kyu 9 win 1 lose .900
2017 /08 5.10 Dan 25 win 7 lose .781
2016 /09 4.37 Dan 43 win 40 lose .518
2016 /08 4.48 Dan 46 win 41 lose .528
2016 /07 4.42 Dan 43 win 45 lose .488
2016 /06 4.34 Dan 56 win 34 lose .622
2016 /05 4.15 Dan 60 win 29 lose .674
2016 /04 4.27 Dan 58 win 32 lose .644
2016 /03 4.13 Dan 56 win 37 lose .602
2016 /02 4.19 Dan 56 win 31 lose .643
2016 /01 4.18 Dan 50 win 31 lose .617
2015 /12 4.09 Dan 52 win 35 lose .597
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