Monthly record of Iwaisaka's rank (dan/kyu)
month dan/kyu win/lose win ratio
2021 /09 8.00 Kyu 2 win 0 lose 1.00
2021 /08 1.65 Kyu 29 win 30 lose .491
2021 /07 9.00 Kyu 1 win 0 lose 1.00
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