Monthly record of Umamoto's rank (dan/kyu)
| month |
dan/kyu |
win/lose |
win ratio |
| 2018
/11
| 8.00 Kyu |
2 win 0 lose |
1.00 |
| 2018
/10
| 8.00 Kyu |
2 win 0 lose |
1.00 |
| 2018
/04
| 8.00 Kyu |
2 win 0 lose |
1.00 |
| 2018
/03
| 9.00 Kyu |
1 win 2 lose |
.333 |
| 2018
/02
| 2.00 Kyu |
8 win 3 lose |
.727 |
| 2017
/11
| 8.00 Kyu |
2 win 2 lose |
.500 |
| 2017
/06
| 8.00 Kyu |
2 win 0 lose |
1.00 |
| 2017
/05
| 7.00 Kyu |
3 win 6 lose |
.333 |
| 2017
/04
| 9.00 Kyu |
1 win 0 lose |
1.00 |
| 2017
/03
| 6.00 Kyu |
4 win 6 lose |
.400 |
| 2017
/02
| 6.00 Kyu |
4 win 5 lose |
.444 |
| 2017
/01
| 4.00 Kyu |
6 win 3 lose |
.666 |
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