Vinnichenko Aleksandr
From Simferopol, Russia
Common russian riichi rating (CRR)
Rating date March 3, 2026 (latest changes March 2, 2026).
139 place (351.92).
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 * 0.57 + 533.33 * 2 * 1 + 391.30 * 1.20 * 1 + 956.52 * 1.20 * 1 + 0) / (1.80 * 0.57 + 2 * 1 + 1.20 * 1 + 1.20 * 1 + 1) = 492.1894930715001
p2 = (956.52 * 1.20 * 1 + 533.33 * 2 * 1 + 466.67 * 1.80 * 0.57 + 391.30 * 1.20 * 1) / max_coefficients = 211.64214046822744
score = 492.1894930715001 * 0.5 + 211.64214046822744 * 0.5 = 351.9158167698638
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-03-02 | 140 -> 139 | 351.92 | |
| 2026-02-27 | 138 -> 140 | 355.44 -> 351.92 |
Happy Bamboo 2024: 71% -> 57% |
| 2026-02-25 | 140 -> 138 | 355.44 | |
| 2026-02-23 | 138 -> 140 | 355.44 | |
| 2026-02-09 | 139 -> 138 | 355.44 | |
| 2026-02-08 | 137 -> 139 | 355.44 | |
| 2026-01-25 | 136 -> 137 | 355.44 | |
| 2026-01-10 | 137 -> 136 | 355.44 | |
| 2026-01-07 | 132 -> 137 | 355.44 | |
| 2026-01-03 | 130 -> 132 | 355.44 |
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 | 57% | 1.80 | CRR | Happy Bamboo 2024 | Simferopol |