Volosnikov Oleg
From Kurgan, Russia
Common russian riichi rating (CRR)
Rating date Sept. 14, 2025 (latest changes Sept. 14, 2025).
161 place (297.17).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8
p1 = (259.26 * 2.30 * 0.43 + 289.72 * 4.60 * 0.57 + 63.83 * 2.80 * 0.71 + 391.30 * 2.20 * 1 + 483.87 * 2.40 * 1 + 328.36 * 4.10 * 1) / (2.30 * 0.43 + 4.60 * 0.57 + 2.80 * 0.71 + 2.20 * 1 + 2.40 * 1 + 4.10 * 1) = 315.29188375787504
p2 = (328.36 * 4.10 * 1 + 483.87 * 2.40 * 1 + 391.30 * 2.20 * 1 + 289.72 * 4.60 * 0.57) / max_coefficients = 279.04999999999995
score = 315.29188375787504 * 0.5 + 279.04999999999995 * 0.5 = 297.17094187893747
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 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 | |
| 2025-09-01 | 164 | 295.95 -> 299.79 | |
| 2025-08-31 | 160 -> 164 | 295.95 | |
| 2025-08-25 | 164 -> 160 | 295.44 -> 295.95 |
Chasing Kan: 57% -> 43% |
| 2025-08-09 | 165 -> 164 | 295.44 | |
| 2025-08-04 | 166 -> 165 | 294.05 -> 295.44 | |
| 2025-08-03 | 160 -> 166 | 294.05 |
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 | 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 | 43% | 2.30 | CRR | Chasing Kan | Yekaterinburg |