Vinnichenko Aleksandr
From Simferopol, Russia
Common russian riichi rating (CRR)
Rating date Aug. 2, 2025 (latest changes Aug. 2, 2025).
188 place (247.13).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.35
p1 = (466.67 * 1.80 * 1 + 533.33 * 2 * 1 + 391.30 * 1.20 * 1 + 0 + 0) / (1.80 * 1 + 2 * 1 + 1.20 * 1 + 1 + 1) = 339.46285714285716
p2 = (533.33 * 2 * 1 + 466.67 * 1.80 * 1 + 391.30 * 1.20 * 1) / max_coefficients = 154.8039087947883
score = 339.46285714285716 * 0.5 + 154.8039087947883 * 0.5 = 247.13338296882273
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-07-30 | 193 -> 188 | 247.13 | |
| 2025-07-26 | 213 -> 193 | 202.30 -> 247.13 |
Pands in discards: 0% -> 100% |
| 2025-07-13 | 209 -> 213 | 202.30 | |
| 2025-07-12 | 209 | 201.14 -> 202.30 | |
| 2025-07-03 | 213 -> 209 | 201.14 | |
| 2025-06-15 | 204 -> 213 | 202.95 -> 201.14 | |
| 2025-06-14 | 198 -> 204 | 202.95 | |
| 2025-06-11 | 205 -> 198 | 202.95 | |
| 2025-06-09 | 208 -> 205 | 202.95 | |
| 2025-05-17 | 206 -> 208 | 202.95 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 391 |
|
15/24 | 100% | 1.20 | CRR | Pands in discards | Simferopol | |
| 2 | 533 |
|
8/16 | 100% | 2.00 | RR | South Dragon Cup II | Simferopol | |
| 3 | 467 |
|
9/16 | 100% | 1.80 | CRR | Happy Bamboo 2024 | Simferopol |