Monthly record of Ervinw's rank (dan/kyu)
| month |
dan/kyu |
win/lose |
win ratio |
| 2023
/06
| 10 Kyu |
0 win 3 lose |
.000 |
| 2021
/11
| 10 Kyu |
0 win 1 lose |
.000 |
| 2021
/05
| 10 Kyu |
0 win 1 lose |
.000 |
| 2021
/01
| 10 Kyu |
0 win 1 lose |
.000 |
| 2020
/05
| 8.00 Kyu |
2 win 3 lose |
.400 |
| 2020
/03
| 10 Kyu |
0 win 2 lose |
.000 |
| 2020
/02
| 9.00 Kyu |
1 win 2 lose |
.333 |
| 2020
/01
| 1.99 Kyu |
12 win 16 lose |
.428 |
| 2019
/12
| 1.89 Kyu |
19 win 17 lose |
.527 |
| 2019
/11
| 9.00 Kyu |
1 win 1 lose |
.500 |
| 2019
/10
| 2.59 Kyu |
13 win 17 lose |
.433 |
| 2019
/09
| 3.07 Kyu |
10 win 22 lose |
.312 |
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