Monthly record of Piiroinen's rank (dan/kyu)
| month |
dan/kyu |
win/lose |
win ratio |
| 2014
/06 |
7.00 Kyu |
3 win 2 lose |
.600 |
| 2014
/04 |
1.28 Kyu |
127 win 117 lose |
.520 |
| 2014
/03 |
0.50 Kyu |
12 win 9 lose |
.571 |
| 2014
/02 |
1.05 Kyu |
44 win 29 lose |
.602 |
| 2014
/01 |
1.72 Kyu |
47 win 42 lose |
.528 |
| 2013
/12 |
1.87 Kyu |
86 win 86 lose |
.500 |
| 2013
/11 |
1.70 Kyu |
114 win 105 lose |
.520 |
| 2013
/10 |
1.91 Kyu |
77 win 69 lose |
.527 |
| 2013
/09 |
2.53 Kyu |
94 win 101 lose |
.482 |
| 2013
/08 |
2.38 Kyu |
106 win 110 lose |
.490 |
| 2013
/07 |
2.41 Kyu |
140 win 142 lose |
.496 |
| 2013
/06 |
9.00 Kyu |
1 win 2 lose |
.333 |
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