Monthly record of Kosiyamasiki's rank (dan/kyu)
month dan/kyu win/lose win ratio
2023 /04 10 Kyu 0 win 1 lose .000
2020 /04 9.00 Kyu 1 win 4 lose .200
2020 /03 9.00 Kyu 1 win 0 lose 1.00
2019 /02 9.00 Kyu 1 win 0 lose 1.00
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