Monthly record of jacobson's rank (dan/kyu)
month dan/kyu win/lose win ratio
2015 /01 10 Kyu 0 win 1 lose .000
2014 /12 8.00 Kyu 2 win 5 lose .285
2014 /11 8.00 Kyu 2 win 9 lose .181
2014 /10 6.00 Kyu 4 win 7 lose .363
2014 /09 10 Kyu 0 win 1 lose .000
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