Vinnichenko Aleksandr
From Simferopol, Russia
Common russian riichi rating (CRR)
Rating date July 26, 2026 (latest changes July 26, 2026).
132 place (408.86).
how we calculated rating score
max_coefficients = (4.71 * 1 + 3.90 * 1 + 4.10 * 0.86 + 3.45 * 1) = 15.574109999999997
p1 = (466.67 * 1.80 * 0.29 + 533.33 * 2 * 0.71 + 391.30 * 1.20 * 0.86 + 956.52 * 1.20 * 1 + 631.58 * 1.30 * 1) / (1.80 * 0.29 + 2 * 0.71 + 1.20 * 0.86 + 1.20 * 1 + 1.30 * 1) = 616.5263608084249
p2 = (956.52 * 1.20 * 1 + 631.58 * 1.30 * 1 + 533.33 * 2 * 0.71 + 391.30 * 1.20 * 0.86) / max_coefficients = 201.18388787545487
score = 616.5263608084249 * 0.5 + 201.18388787545487 * 0.5 = 408.85512434193987
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-07-26 | 134 -> 132 | 407.59 -> 408.86 |
Pands in discards: 100% -> 86% |
| 2026-07-18 | 132 -> 134 | 407.59 | |
| 2026-07-12 | 129 -> 132 | 407.59 | |
| 2026-07-11 | 128 -> 129 | 407.59 | |
| 2026-07-02 | 129 -> 128 | 407.59 | |
| 2026-06-27 | 129 | 407.74 -> 407.59 |
South Dragon Cup II: 86% -> 71% Happy Bamboo 2024: 43% -> 29% |
| 2026-06-15 | 129 | 403.84 -> 407.74 | |
| 2026-06-14 | 112 -> 129 | 412.99 -> 403.84 | |
| 2026-06-13 | 114 -> 112 | 412.99 | |
| 2026-06-02 | 113 -> 114 | 412.99 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 632 |
|
8/20 | 100% | 1.30 | CRR | The Southern Coon Mini Cup 2026 | Simferopol | |
| 2 | 957 |
|
🥈 | 2/24 | 100% | 1.20 | CRR | Riichi on fire | Simferopol |
| 3 | 391 |
|
15/24 | 86% | 1.20 | CRR | Pands in discards | Simferopol | |
| 4 | 533 |
|
8/16 | 71% | 2.00 | RR | South Dragon Cup II | Simferopol | |
| 5 | 467 |
|
9/16 | 29% | 1.80 | CRR | Happy Bamboo 2024 | Simferopol |