Volosnikov Oleg
From Kurgan, Russia
Common russian riichi rating (CRR)
Rating date July 12, 2025 (latest changes July 12, 2025).
159 place (291.03).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.35
p1 = (259.26 * 2.30 * 0.57 + 289.72 * 4.60 * 0.71 + 63.83 * 2.80 * 1 + 391.30 * 2.20 * 1 + 483.87 * 2.40 * 1 + 328.36 * 4.10 * 1) / (2.30 * 0.57 + 4.60 * 0.71 + 2.80 * 1 + 2.20 * 1 + 2.40 * 1 + 4.10 * 1) = 300.6099378881987
p2 = (328.36 * 4.10 * 1 + 483.87 * 2.40 * 1 + 289.72 * 4.60 * 0.71 + 391.30 * 2.20 * 1) / max_coefficients = 281.45798045602606
score = 300.6099378881987 * 0.5 + 281.45798045602606 * 0.5 = 291.0339591721124
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-07-12 | 158 -> 159 | 294.27 -> 291.03 |
X Russian Championship: 86% -> 71% |
| 2025-07-05 | 161 -> 158 | 294.27 | |
| 2025-07-03 | 162 -> 161 | 294.27 | |
| 2025-06-25 | 163 -> 162 | 293.88 -> 294.27 |
Chasing Kan: 71% -> 57% |
| 2025-06-15 | 172 -> 163 | 263.29 -> 293.88 |
13 bloody tiles: 0% -> 100% |
| 2025-06-14 | 169 -> 172 | 263.29 | |
| 2025-06-11 | 177 -> 169 | 263.29 | |
| 2025-06-09 | 178 -> 177 | 263.29 | |
| 2025-05-30 | 180 -> 178 | 263.29 | |
| 2025-05-17 | 178 -> 180 | 263.29 |
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 | 100% | 2.20 | CRR | Tails, money, two renchans | Tyumen |
| 4 | 64 |
|
45/48 | 100% | 2.80 | RR | Guardian of the Winds | Yekaterinburg |
| 5 | 290 |
|
77/108 | 71% | 4.60 | RR | X Russian Championship | Perm |
| 6 | 259 |
|
21/28 | 57% | 2.30 | CRR | Chasing Kan | Yekaterinburg |