Van Viktor
From Samara, Russia
Common russian riichi rating (CRR)
Rating date Dec. 8, 2025 (latest changes Dec. 7, 2025).
87 place (462.03).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (347.83 * 2.80 * 0.86 + 95.24 * 2.60 * 1 + 842.11 * 3.90 * 1 + 677.42 * 3 * 1 + 0) / (2.80 * 0.86 + 2.60 * 1 + 3.90 * 1 + 3 * 1 + 1) = 496.037947639823
p2 = (842.11 * 3.90 * 1 + 677.42 * 3 * 1 + 347.83 * 2.80 * 0.86 + 95.24 * 2.60 * 1) / max_coefficients = 428.0153846153846
score = 496.037947639823 * 0.5 + 428.0153846153846 * 0.5 = 462.0266661276038
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-12-07 | 86 -> 87 | 462.03 | |
| 2025-12-06 | 85 -> 86 | 462.03 | |
| 2025-12-04 | 86 -> 85 | 462.03 | |
| 2025-12-01 | 86 | 464.45 -> 462.03 |
Riichi never changing: 100% -> 86% |
| 2025-11-30 | 133 -> 86 | 350.06 -> 464.45 |
Final Cup 2025: 0% -> 100% |
| 2025-11-22 | 131 -> 133 | 350.06 | |
| 2025-11-19 | 132 -> 131 | 350.06 | |
| 2025-11-12 | 133 -> 132 | 350.06 | |
| 2025-11-10 | 134 -> 133 | 350.06 | |
| 2025-11-04 | 255 -> 134 | 115.42 -> 350.06 |
XI Russian Championship: 0% -> 100% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 677 |
|
11/32 | 100% | 3.00 | RR | Final Cup 2025 | Moscow | |
| 2 | 842 |
|
10/58 | 100% | 3.90 | RR | XI Russian Championship | Moscow | |
| 3 | 95 |
|
39/43 | 100% | 2.60 | RR | Riichi On Ice | Samara | |
| 4 | 348 |
|
16/24 | 86% | 2.80 | CRR | Riichi never changing | Moscow |