Monthly record of umiyamataki's rank (dan/kyu)
month dan/kyu win/lose win ratio
2014 /05 9.00 Kyu 1 win 5 lose .166
2014 /02 3.92 Kyu 16 win 27 lose .372
2014 /01 3.67 Kyu 97 win 92 lose .513
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