Monthly record of costco's rank (dan/kyu)
| month |
dan/kyu |
win/lose |
win ratio |
| 2025
/02
| 8.00 Kyu |
2 win 1 lose |
.666 |
| 2025
/01
| 1.00 Kyu |
9 win 5 lose |
.642 |
| 2024
/12
| 7.00 Kyu |
3 win 1 lose |
.750 |
| 2024
/11
| 3.00 Kyu |
7 win 9 lose |
.437 |
| 2024
/10
| 9.00 Kyu |
1 win 1 lose |
.500 |
| 2024
/09
| 2.00 Kyu |
8 win 5 lose |
.615 |
| 2024
/08
| 0.40 Kyu |
11 win 5 lose |
.687 |
| 2024
/07
| 3.00 Kyu |
7 win 9 lose |
.437 |
| 2024
/06
| 0.53 Kyu |
19 win 14 lose |
.575 |
| 2024
/05
| 0.05 Kyu |
14 win 7 lose |
.666 |
| 2024
/04
| 6.00 Kyu |
4 win 4 lose |
.500 |
| 2024
/03
| 4.00 Kyu |
6 win 6 lose |
.500 |
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