Monthly record of Jackkoshiba's rank (dan/kyu)
| month |
dan/kyu |
win/lose |
win ratio |
| 2025
/01
| 7.00 Kyu |
3 win 6 lose |
.333 |
| 2024
/12
| 10 Kyu |
0 win 2 lose |
.000 |
| 2024
/11
| 2.24 Dan |
18 win 18 lose |
.500 |
| 2024
/10
| 2.48 Dan |
18 win 10 lose |
.642 |
| 2024
/08
| 10 Kyu |
0 win 1 lose |
.000 |
| 2024
/07
| 7.00 Kyu |
3 win 0 lose |
1.00 |
| 2024
/06
| 5.00 Kyu |
5 win 10 lose |
.333 |
| 2024
/05
| 7.00 Kyu |
3 win 5 lose |
.375 |
| 2024
/04
| 5.00 Kyu |
5 win 3 lose |
.625 |
| 2024
/03
| 3.00 Kyu |
7 win 3 lose |
.700 |
| 2024
/02
| 2.17 Dan |
19 win 15 lose |
.558 |
| 2024
/01
| 2.30 Dan |
17 win 9 lose |
.653 |
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