Kashaev Rostislav
From Novosibirsk, Russia
Common russian riichi rating (CRR)
Rating date Aug. 25, 2026 (latest changes Aug. 16, 2026).
217 place (284.27).
how we calculated rating score
max_coefficients = (4.71 * 1 + 3.90 * 1 + 3.45 * 1 + 3.40 * 1) = 15.459999999999999
p1 = (774.19 * 2.40 * 0.57 + 657.14 * 2.50 * 1 + 0 + 0 + 0) / (2.40 * 0.57 + 2.50 * 1 + 1 + 1 + 1) = 393.59893820146226
p2 = (657.14 * 2.50 * 1 + 774.19 * 2.40 * 0.57) / max_coefficients = 174.9391979301423
score = 393.59893820146226 * 0.5 + 174.9391979301423 * 0.5 = 284.2690680658023
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-08-16 | 210 -> 217 | 284.27 | |
| 2026-08-15 | 209 -> 210 | 283.63 -> 284.27 | |
| 2026-08-14 | 210 -> 209 | 283.63 | |
| 2026-08-13 | 193 -> 210 | 301.20 -> 283.63 |
Akademgorodok Riichi Mahjong Tournament 2025: 71% -> 57% |
| 2026-08-04 | 196 -> 193 | 301.20 | |
| 2026-08-02 | 195 -> 196 | 301.20 | |
| 2026-07-25 | 193 -> 195 | 301.20 | |
| 2026-07-14 | 195 -> 193 | 301.20 | |
| 2026-07-12 | 192 -> 195 | 301.20 | |
| 2026-07-11 | 191 -> 192 | 301.20 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 657 |
|
13/36 | 100% | 2.50 | CRR | Akademgorodok Riichi Mahjong Tournament 2026 | Novosibirsk | |
| 2 | 774 |
|
8/32 | 57% | 2.40 | CRR | Akademgorodok Riichi Mahjong Tournament 2025 | Novosibirsk | |
| 3 | 867 |
|
🥉 | 3/16 | 0% | 1.60 | CRR | Akademgorodok: Riichi Mahjong Tournament 2024 | Novosibirsk |
| 4 | 467 |
|
9/16 | 0% | 1.60 | CRR | Riichi Tournament 2022 | Novosibirsk |