Polyanskaya Aleksandra
From Moscow, Russia
Common russian riichi rating (CRR)
Rating date Nov. 5, 2025 (latest changes Nov. 5, 2025).
108 place (416.38).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
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 = 328.7230769230769
score = 504.04205128205126 * 0.5 + 328.7230769230769 * 0.5 = 416.38256410256406
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-11-04 | 104 -> 108 | 423.85 -> 416.38 | |
| 2025-11-01 | 108 -> 104 | 423.26 -> 423.85 | |
| 2025-10-13 | 109 -> 108 | 418.05 -> 423.26 | |
| 2025-10-04 | 108 -> 109 | 418.05 | |
| 2025-09-30 | 109 -> 108 | 418.05 | |
| 2025-09-12 | 111 -> 109 | 418.05 | |
| 2025-09-10 | 112 -> 111 | 418.05 | |
| 2025-09-03 | 113 -> 112 | 418.05 | |
| 2025-09-01 | 114 -> 113 | 413.68 -> 418.05 | |
| 2025-08-31 | 109 -> 114 | 413.68 |
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 |