Kashaev Rostislav
From Novosibirsk, Russia
Common russian riichi rating (CRR)
Rating date Oct. 20, 2025 (latest changes Oct. 13, 2025).
178 place (274.13).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.50 * 1 + 3.45 * 1 + 3.85 * 0.86) = 14.349835
p1 = (866.67 * 1.60 * 0.57 + 708.33 * 2.20 * 1 + 0 + 0 + 0) / (1.60 * 0.57 + 2.20 * 1 + 1 + 1 + 1) = 384.45824828596847
p2 = (708.33 * 2.20 * 1 + 866.67 * 1.60 * 0.57) / max_coefficients = 163.81163964603078
score = 384.45824828596847 * 0.5 + 163.81163964603078 * 0.5 = 274.13494396599964
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 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 | |
| 2025-08-31 | 172 -> 176 | 284.76 | |
| 2025-08-26 | 174 -> 172 | 284.76 | |
| 2025-08-25 | 178 -> 174 | 284.76 | |
| 2025-08-04 | 178 | 283.94 -> 284.76 |
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 | 57% | 1.60 | CRR | Akademgorodok: Riichi Mahjong Tournament 2024 | Novosibirsk |
| 3 | 467 |
|
9/16 | 0% | 1.60 | CRR | Riichi Tournament 2022 | Novosibirsk |