Vinnichenko Aleksandr
From Simferopol, Russia
Common russian riichi rating (CRR)
Rating date May 23, 2026 (latest changes May 23, 2026).
113 place (412.99).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.45 * 1 + 3.40 * 1) = 14.85
p1 = (466.67 * 1.80 * 0.43 + 533.33 * 2 * 0.86 + 391.30 * 1.20 * 1 + 956.52 * 1.20 * 1 + 631.58 * 1.30 * 1) / (1.80 * 0.43 + 2 * 0.86 + 1.20 * 1 + 1.20 * 1 + 1.30 * 1) = 600.2104861551196
p2 = (956.52 * 1.20 * 1 + 533.33 * 2 * 0.86 + 631.58 * 1.30 * 1 + 391.30 * 1.20 * 1) / max_coefficients = 225.7703703703704
score = 600.2104861551196 * 0.5 + 225.7703703703704 * 0.5 = 412.990428262745
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-05-23 | 115 -> 113 | 412.99 | |
| 2026-05-17 | 113 -> 115 | 412.99 | |
| 2026-05-12 | 114 -> 113 | 412.99 | |
| 2026-05-11 | 113 -> 114 | 412.99 | |
| 2026-05-03 | 114 -> 113 | 412.24 -> 412.99 | |
| 2026-05-02 | 115 -> 114 | 412.24 | |
| 2026-05-01 | 114 -> 115 | 412.24 | |
| 2026-04-27 | 113 -> 114 | 413.71 -> 412.24 |
South Dragon Cup II: 100% -> 86% Happy Bamboo 2024: 57% -> 43% |
| 2026-04-19 | 110 -> 113 | 413.71 | |
| 2026-04-05 | 108 -> 110 | 413.71 |
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 | 100% | 1.20 | CRR | Pands in discards | Simferopol | |
| 4 | 533 |
|
8/16 | 86% | 2.00 | RR | South Dragon Cup II | Simferopol | |
| 5 | 467 |
|
9/16 | 43% | 1.80 | CRR | Happy Bamboo 2024 | Simferopol |