Kuskova Polina
From Korolyov, Russia
Common russian riichi rating (CRR)
Rating date June 29, 2026 (latest changes June 29, 2026).
93 place (486.04).
how we calculated rating score
max_coefficients = (4.71 * 1 + 3.90 * 1 + 4.10 * 0.86 + 3.45 * 1) = 15.574109999999997
p1 = (684.21 * 1.50 * 0.86 + 133.33 * 2 * 0.86 + 684.21 * 2.25 * 1 + 391.89 * 3.40 * 1 + 784.31 * 2.30 * 1 + 640 * 3.10 * 1 + 476.19 * 2.90 * 1 + 444.44 * 2.45 * 1 + 412.59 * 4.71 * 1) / (1.50 * 0.86 + 2 * 0.86 + 2.25 * 1 + 3.40 * 1 + 2.30 * 1 + 3.10 * 1 + 2.90 * 1 + 2.45 * 1 + 4.71 * 1) = 505.2362416190892
p2 = (640 * 3.10 * 1 + 412.59 * 4.71 * 1 + 784.31 * 2.30 * 1 + 684.21 * 2.25 * 1) / max_coefficients = 466.8440122742167
score = 505.2362416190892 * 0.5 + 466.8440122742167 * 0.5 = 486.04012694665295
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-06-15 | 94 -> 93 | 477.58 -> 486.04 | |
| 2026-06-14 | 90 -> 94 | 454.38 -> 477.58 |
XII Russian Championship: 0% -> 100% |
| 2026-06-09 | 91 -> 90 | 454.38 | |
| 2026-06-08 | 93 -> 91 | 452.42 -> 454.38 |
Random not fault: 100% -> 86% |
| 2026-06-04 | 95 -> 93 | 452.42 | |
| 2026-06-02 | 94 -> 95 | 452.42 | |
| 2026-05-31 | 95 -> 94 | 452.42 | |
| 2026-05-26 | 96 -> 95 | 452.42 | |
| 2026-05-17 | 95 -> 96 | 454.07 -> 452.42 |
HaTiKo: 100% -> 86% Hatiko under the sakura: 0% -> 100% |
| 2026-05-15 | 96 -> 95 | 454.07 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 413 |
|
85/144 | 100% | 4.71 | RR | XII Russian Championship | Samara | |
| 2 | 444 |
|
16/28 | 100% | 2.45 | RR | Hatiko under the sakura | Korolyov | |
| 3 | 476 |
|
23/43 | 100% | 2.90 | RR | Sturgeon in tempai | Saratov | |
| 4 | 640 |
|
19/51 | 100% | 3.10 | RR | Moscow Riichi 2026 | Moscow | |
| 5 | 784 |
|
12/52 | 100% | 2.30 | CRR | "Furin" club tournament: for the anniversary | Moscow | |
| 6 | 392 |
|
46/75 | 100% | 3.40 | RR | White Wolf Cup 2026 | Saint Petersburg | |
| 7 | 684 |
|
7/20 | 100% | 2.25 | RR | Winter Hatiko | Korolyov | |
| 8 | 105 |
|
52/58 | 100% | 3.90 | RR | XI Russian Championship | Moscow | |
| 9 | 133 |
|
14/16 | 86% | 2.00 | RR | Random not fault | Moscow | |
| 10 | 684 |
|
7/20 | 86% | 1.50 | CRR | HaTiKo | Korolyov |