Kuskova Polina
From Korolyov, Russia
Common russian riichi rating (CRR)
Rating date Aug. 25, 2025 (latest changes Aug. 25, 2025).
251 place (141.99).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.50 * 1) = 15.2
p1 = (684.21 * 1.50 * 1 + 133.33 * 2 * 1 + 0 + 0 + 0) / (1.50 * 1 + 2 * 1 + 1 + 1 + 1) = 198.92153846153846
p2 = (684.21 * 1.50 * 1 + 133.33 * 2 * 1) / max_coefficients = 85.06513157894737
score = 198.92153846153846 * 0.5 + 85.06513157894737 * 0.5 = 141.9933350202429
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-08-25 | 252 -> 251 | 141.99 | |
| 2025-08-22 | 253 -> 252 | 141.99 | |
| 2025-08-04 | 253 | 141.58 -> 141.99 | |
| 2025-08-03 | 247 -> 253 | 141.58 | |
| 2025-07-26 | 245 -> 247 | 141.58 | |
| 2025-07-13 | 243 -> 245 | 141.58 | |
| 2025-07-12 | 243 | 140.79 -> 141.58 | |
| 2025-06-22 | 245 -> 243 | 140.79 | |
| 2025-06-15 | 237 -> 245 | 142.01 -> 140.79 | |
| 2025-06-14 | 231 -> 237 | 142.01 |