Vinnichenko Aleksandr
From Simferopol, Russia
Common russian riichi rating (CRR)
Rating date March 24, 2026 (latest changes March 23, 2026).
111 place (413.71).
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 + 631.58 * 1.30 * 1) / (1.80 * 0.57 + 2 * 1 + 1.20 * 1 + 1.20 * 1 + 1.30 * 1) = 592.2699196851611
p2 = (956.52 * 1.20 * 1 + 533.33 * 2 * 1 + 631.58 * 1.30 * 1 + 466.67 * 1.80 * 0.57) / max_coefficients = 235.15250836120404
score = 592.2699196851611 * 0.5 + 235.15250836120404 * 0.5 = 413.71121402318255
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-03-21 | 143 -> 111 | 351.92 -> 413.71 |
The Southern Coon Mini Cup 2026: 0% -> 100% |
| 2026-03-14 | 136 -> 143 | 351.92 | |
| 2026-03-12 | 138 -> 136 | 351.92 | |
| 2026-03-10 | 139 -> 138 | 351.92 | |
| 2026-03-07 | 138 -> 139 | 351.92 | |
| 2026-03-04 | 139 -> 138 | 351.92 | |
| 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 |
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 | 100% | 2.00 | RR | South Dragon Cup II | Simferopol | |
| 5 | 467 |
|
9/16 | 57% | 1.80 | CRR | Happy Bamboo 2024 | Simferopol |