Volosnikov Oleg
From Kurgan, Russia
Common russian riichi rating (CRR)
Rating date Nov. 1, 2025 (latest changes Nov. 1, 2025).
160 place (297.55).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.50 * 1 + 3.45 * 1 + 3.25 * 1) = 14.3
p1 = (259.26 * 2.30 * 0.29 + 289.72 * 4.60 * 0.57 + 63.83 * 2.80 * 0.71 + 391.30 * 2.20 * 0.86 + 483.87 * 2.40 * 1 + 328.36 * 4.10 * 1) / (2.30 * 0.29 + 4.60 * 0.57 + 2.80 * 0.71 + 2.20 * 0.86 + 2.40 * 1 + 4.10 * 1) = 314.890927723296
p2 = (328.36 * 4.10 * 1 + 483.87 * 2.40 * 1 + 289.72 * 4.60 * 0.57 + 391.30 * 2.20 * 0.86) / max_coefficients = 280.20419580419576
score = 314.890927723296 * 0.5 + 280.20419580419576 * 0.5 = 297.5475617637459
Rating changes
| Date | Place | Points | Reason | 
|---|---|---|---|
| 2025-11-01 | 162 -> 160 | 297.06 -> 297.55 | |
| 2025-10-27 | 161 -> 162 | 297.06 | |
| 2025-10-25 | 161 | 296.41 -> 297.06 | 
                        
                             Chasing Kan: 43% -> 29%  | 
                
| 2025-10-13 | 165 -> 161 | 292.16 -> 296.41 | |
| 2025-10-04 | 167 -> 165 | 292.16 | |
| 2025-09-15 | 161 -> 167 | 297.17 -> 292.16 | 
                        
                             Tails, money, two renchans: 100% -> 86%  | 
                
| 2025-09-14 | 165 -> 161 | 293.75 -> 297.17 | 
                        
                             Guardian of the Winds: 86% -> 71%  | 
                
| 2025-09-12 | 159 -> 165 | 299.79 -> 293.75 | 
                        
                             X Russian Championship: 71% -> 57%  | 
                
| 2025-09-10 | 161 -> 159 | 299.79 | |
| 2025-09-03 | 164 -> 161 | 299.79 | 
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 328 | 
                     | 
                46/68 | 100% | 4.10 | RR | 13 bloody tiles | Perm | |
| 2 | 484 | 
                     | 
                17/32 | 100% | 2.40 | RR | Riichi Maslenitsa (shrovetide) | Yekaterinburg | |
| 3 | 391 | 
                     | 
                15/24 | 86% | 2.20 | CRR | Tails, money, two renchans | Tyumen | |
| 4 | 64 | 
                     | 
                45/48 | 71% | 2.80 | RR | Guardian of the Winds | Yekaterinburg | |
| 5 | 290 | 
                     | 
                77/108 | 57% | 4.60 | RR | X Russian Championship | Perm | |
| 6 | 259 | 
                     | 
                21/28 | 29% | 2.30 | CRR | Chasing Kan | Yekaterinburg |