Cherkasov Aleksandr
From Saratov, Russia
Common russian riichi rating (CRR)
Rating date Nov. 10, 2026 (latest changes Nov. 8, 2026).
173 place (347.22).
how we calculated rating score
max_coefficients = (4.71 * 1 + 3.40 * 1 + 3.40 * 1 + 3.40 * 1) = 14.91
p1 = (750 * 1.50 * 1 + 95.24 * 2.90 * 1 + 503.50 * 4.71 * 1 + 338.03 * 3.40 * 1 + 0) / (1.50 * 1 + 2.90 * 1 + 4.71 * 1 + 3.40 * 1 + 1) = 364.319763138416
p2 = (503.50 * 4.71 * 1 + 338.03 * 3.40 * 1 + 750 * 1.50 * 1 + 95.24 * 2.90 * 1) / max_coefficients = 330.1113346747149
score = 364.319763138416 * 0.5 + 330.1113346747149 * 0.5 = 347.21554890656546
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-11-08 | 171 -> 173 | 347.22 | |
| 2026-11-07 | 172 -> 171 | 347.22 | |
| 2026-11-04 | 174 -> 172 | 341.86 -> 347.22 | |
| 2026-11-02 | 175 -> 174 | 341.86 | |
| 2026-11-01 | 173 -> 175 | 341.86 | |
| 2026-10-31 | 169 -> 173 | 341.86 | |
| 2026-10-26 | 170 -> 169 | 341.86 | |
| 2026-10-24 | 168 -> 170 | 341.86 | |
| 2026-10-17 | 166 -> 168 | 341.86 | |
| 2026-10-16 | 167 -> 166 | 341.86 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 338 |
|
48/72 | 100% | 3.40 | RR | Sunset Wolf Cup 2026 | Saint Petersburg | |
| 2 | 504 |
|
72/144 | 100% | 4.71 | RR | XII Russian Championship | Samara | |
| 3 | 95 |
|
39/43 | 100% | 2.90 | RR | Sturgeon in tempai | Saratov | |
| 4 | 750 |
|
6/21 | 100% | 1.50 | CRR | San-Biki Cup | Saratov |