Kuskova Polina
From Korolyov, Russia
Internal rating (RR)
Rating date May 21, 2026 (latest changes May 17, 2026).
91 place (410.07).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.45 * 1 + 3.40 * 1) = 14.85
p1 = (133.33 * 2 * 1 + 105.26 * 3.90 * 1 + 684.21 * 2.25 * 1 + 391.89 * 3.40 * 1 + 640 * 3.10 * 1 + 476.19 * 2.90 * 1 + 444.44 * 2.45 * 1) / (2 * 1 + 3.90 * 1 + 2.25 * 1 + 3.40 * 1 + 3.10 * 1 + 2.90 * 1 + 2.45 * 1) = 400.14700000000005
p2 = (640 * 3.10 * 1 + 684.21 * 2.25 * 1 + 476.19 * 2.90 * 1 + 391.89 * 3.40 * 1) / max_coefficients = 419.989898989899
score = 400.14700000000005 * 0.5 + 419.989898989899 * 0.5 = 410.0684494949495
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-05-17 | 90 -> 91 | 406.98 -> 410.07 |
Hatiko under the sakura: 0% -> 100% |
| 2026-05-12 | 92 -> 90 | 406.98 | |
| 2026-05-03 | 114 -> 92 | 364.98 -> 406.98 |
Sturgeon in tempai: 0% -> 100% |
| 2026-05-01 | 115 -> 114 | 364.98 | |
| 2026-04-26 | 116 -> 115 | 364.98 | |
| 2026-04-19 | 115 -> 116 | 364.98 | |
| 2026-04-16 | 116 -> 115 | 364.98 | |
| 2026-04-11 | 115 -> 116 | 364.98 | |
| 2026-04-05 | 156 -> 115 | 260.10 -> 364.98 |
Moscow Riichi 2026: 0% -> 100% |
| 2026-04-04 | 158 -> 156 | 260.10 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 444 |
|
16/28 | 100% | 2.45 | RR | Hatiko under the sakura | Korolyov | |
| 2 | 476 |
|
23/43 | 100% | 2.90 | RR | Sturgeon in tempai | Saratov | |
| 3 | 640 |
|
19/51 | 100% | 3.10 | RR | Moscow Riichi 2026 | 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 |