Polyanskaya Aleksandra
From Moscow, Russia
Internal rating (RR)
Rating date Sept. 1, 2025 (latest changes Sept. 1, 2025).
100 place (418.05).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8
p1 = (881.36 * 3.25 * 1 + 585.71 * 3.50 * 1 + 0 + 0 + 0) / (3.25 * 1 + 3.50 * 1 + 1 + 1 + 1) = 504.04205128205126
p2 = (881.36 * 3.25 * 1 + 585.71 * 3.50 * 1) / max_coefficients = 332.05472972972973
score = 504.04205128205126 * 0.5 + 332.05472972972973 * 0.5 = 418.0483905058905
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-09-01 | 104 -> 100 | 413.68 -> 418.05 | |
| 2025-08-31 | 97 -> 104 | 413.68 | |
| 2025-08-04 | 97 | 412.10 -> 413.68 | |
| 2025-08-03 | 96 -> 97 | 412.10 | |
| 2025-07-30 | 97 -> 96 | 412.10 | |
| 2025-07-13 | 96 -> 97 | 412.10 | |
| 2025-07-12 | 97 -> 96 | 409.10 -> 412.10 | |
| 2025-07-10 | 98 -> 97 | 409.10 | |
| 2025-06-15 | 92 -> 98 | 413.76 -> 409.10 | |
| 2025-06-11 | 95 -> 92 | 413.76 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 586 |
|
30/71 | 100% | 3.50 | RR | Riichi over The Volga 2025 | Samara | |
| 2 | 881 |
|
8/60 | 100% | 3.25 | RR | White Wolf Cup | Saint Petersburg |