Vinnichenko Aleksandr
From Simferopol, Russia
Common russian riichi rating (CRR)
Rating date Jan. 22, 2026 (latest changes Jan. 19, 2026).
140 place (355.44).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (466.67 * 1.80 * 0.71 + 533.33 * 2 * 1 + 391.30 * 1.20 * 1 + 956.52 * 1.20 * 1 + 0) / (1.80 * 0.71 + 2 * 1 + 1.20 * 1 + 1.20 * 1 + 1) = 491.20665775217105
p2 = (956.52 * 1.20 * 1 + 533.33 * 2 * 1 + 466.67 * 1.80 * 0.71 + 391.30 * 1.20 * 1) / max_coefficients = 219.67090301003347
score = 491.20665775217105 * 0.5 + 219.67090301003347 * 0.5 = 355.4387803811023
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-01-10 | 141 -> 140 | 355.44 | |
| 2026-01-07 | 136 -> 141 | 355.44 | |
| 2026-01-03 | 134 -> 136 | 355.44 | |
| 2026-01-01 | 136 -> 134 | 355.44 | |
| 2025-12-27 | 132 -> 136 | 359.00 -> 355.44 |
Happy Bamboo 2024: 86% -> 71% |
| 2025-12-09 | 133 -> 132 | 359.00 | |
| 2025-12-07 | 128 -> 133 | 359.00 | |
| 2025-12-06 | 195 -> 128 | 242.76 -> 359.00 |
Riichi on fire: 0% -> 100% |
| 2025-11-22 | 193 -> 195 | 242.76 | |
| 2025-11-19 | 194 -> 193 | 242.76 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 957 |
|
🥈 | 2/24 | 100% | 1.20 | CRR | Riichi on fire | Simferopol |
| 2 | 391 |
|
15/24 | 100% | 1.20 | CRR | Pands in discards | Simferopol | |
| 3 | 533 |
|
8/16 | 100% | 2.00 | RR | South Dragon Cup II | Simferopol | |
| 4 | 467 |
|
9/16 | 71% | 1.80 | CRR | Happy Bamboo 2024 | Simferopol |