Kashaev Rostislav
From Novosibirsk, Russia
Common russian riichi rating (CRR)
Rating date Nov. 5, 2025 (latest changes Nov. 5, 2025).
192 place (254.87).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (866.67 * 1.60 * 0.43 + 708.33 * 2.20 * 1 + 0 + 0 + 0) / (1.60 * 0.43 + 2.20 * 1 + 1 + 1 + 1) = 365.74036318164514
p2 = (708.33 * 2.20 * 1 + 866.67 * 1.60 * 0.43) / max_coefficients = 143.990635451505
score = 365.74036318164514 * 0.5 + 143.990635451505 * 0.5 = 254.86549931657507
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-11-05 | 181 -> 192 | 270.85 -> 254.87 |
Akademgorodok: Riichi Mahjong Tournament 2024: 57% -> 43% |
| 2025-11-04 | 177 -> 181 | 274.42 -> 270.85 | |
| 2025-11-01 | 177 | 274.13 -> 274.42 | |
| 2025-10-27 | 178 -> 177 | 274.13 | |
| 2025-10-13 | 178 | 271.64 -> 274.13 | |
| 2025-09-30 | 179 -> 178 | 271.64 | |
| 2025-09-12 | 181 -> 179 | 271.64 | |
| 2025-09-05 | 174 -> 181 | 287.03 -> 271.64 |
Akademgorodok: Riichi Mahjong Tournament 2024: 71% -> 57% |
| 2025-09-03 | 176 -> 174 | 287.03 | |
| 2025-09-01 | 176 | 284.76 -> 287.03 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 708 |
|
8/25 | 100% | 2.20 | CRR | Akademgorodok Riichi Mahjong Tournament 2025 | Novosibirsk | |
| 2 | 867 |
|
🥉 | 3/16 | 43% | 1.60 | CRR | Akademgorodok: Riichi Mahjong Tournament 2024 | Novosibirsk |
| 3 | 467 |
|
9/16 | 0% | 1.60 | CRR | Riichi Tournament 2022 | Novosibirsk |