Monthly record of Iwaisaka's rank (dan/kyu)
month dan/kyu win/lose win ratio
2021 /11 5.00 Kyu 5 win 2 lose .714
2021 /10 2.60 Kyu 72 win 91 lose .441
2021 /09 2.37 Kyu 111 win 133 lose .454
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