Kuskova Polina
From Korolyov, Russia
Common russian riichi rating (CRR)
Rating date May 17, 2026 (latest changes May 17, 2026).
95 place (452.92).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.45 * 1 + 3.40 * 1) = 14.85
p1 = (684.21 * 1.50 * 0.86 + 133.33 * 2 * 1 + 105.26 * 3.90 * 1 + 684.21 * 2.25 * 1 + 391.89 * 3.40 * 1 + 784.31 * 2.30 * 1 + 640 * 3.10 * 1 + 476.19 * 2.90 * 1) / (1.50 * 0.86 + 2 * 1 + 3.90 * 1 + 2.25 * 1 + 3.40 * 1 + 2.30 * 1 + 3.10 * 1 + 2.90 * 1) = 454.09675122364354
p2 = (640 * 3.10 * 1 + 784.31 * 2.30 * 1 + 684.21 * 2.25 * 1 + 476.19 * 2.90 * 1) / max_coefficients = 451.74006734006736
score = 454.09675122364354 * 0.5 + 451.74006734006736 * 0.5 = 452.9184092818555
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-05-17 | 95 | 454.07 -> 452.92 |
HaTiKo: 100% -> 86% |
| 2026-05-15 | 96 -> 95 | 454.07 | |
| 2026-05-12 | 97 -> 96 | 454.07 | |
| 2026-05-03 | 99 -> 97 | 449.39 -> 454.07 |
Sturgeon in tempai: 0% -> 100% |
| 2026-05-02 | 100 -> 99 | 449.39 | |
| 2026-05-01 | 102 -> 100 | 449.39 | |
| 2026-04-19 | 98 -> 102 | 449.39 | |
| 2026-04-16 | 99 -> 98 | 449.39 | |
| 2026-04-13 | 101 -> 99 | 449.39 | |
| 2026-04-11 | 100 -> 101 | 449.39 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 476 |
|
23/43 | 100% | 2.90 | RR | Sturgeon in tempai | Saratov | |
| 2 | 640 |
|
19/51 | 100% | 3.10 | RR | Moscow Riichi 2026 | Moscow | |
| 3 | 784 |
|
12/52 | 100% | 2.30 | CRR | "Furin" club tournament: for the anniversary | Moscow | |
| 4 | 392 |
|
46/75 | 100% | 3.40 | RR | White Wolf Cup 2026 | Saint Petersburg | |
| 5 | 684 |
|
7/20 | 100% | 2.25 | RR | Winter Hatiko | Korolyov | |
| 6 | 105 |
|
52/58 | 100% | 3.90 | RR | XI Russian Championship | Moscow | |
| 7 | 133 |
|
14/16 | 100% | 2.00 | RR | Random not fault | Moscow | |
| 8 | 684 |
|
7/20 | 86% | 1.50 | CRR | HaTiKo | Korolyov |