Chernykh Svetlana
From Yekaterinburg, Russia
Common russian riichi rating (CRR)
Rating date Sept. 21, 2026 (latest changes Sept. 17, 2026).
44 place (618.62).
how we calculated rating score
max_coefficients = (4.71 * 1 + 3.90 * 1 + 3.40 * 1 + 3.40 * 1) = 15.41
p1 = (741.94 * 2.40 * 0.43 + 686.57 * 4.10 * 0.71 + 371.43 * 2.50 * 1 + 741.26 * 4.71 * 1 + 870.97 * 2.40 * 1) / (2.40 * 0.43 + 4.10 * 0.71 + 2.50 * 1 + 4.71 * 1 + 2.40 * 1) = 684.3012632607739
p2 = (741.26 * 4.71 * 1 + 870.97 * 2.40 * 1 + 686.57 * 4.10 * 0.71 + 371.43 * 2.50 * 1) / max_coefficients = 552.9474367293965
score = 684.3012632607739 * 0.5 + 552.9474367293965 * 0.5 = 618.6243499950851
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-09-07 | 45 -> 44 | 618.62 | |
| 2026-09-06 | 42 -> 45 | 618.62 | |
| 2026-09-03 | 44 -> 42 | 618.62 | |
| 2026-09-02 | 42 -> 44 | 622.22 -> 618.62 |
Riichi Maslenitsa (shrovetide): 57% -> 43% |
| 2026-08-31 | 42 | 621.32 -> 622.22 | |
| 2026-08-16 | 41 -> 42 | 621.32 | |
| 2026-08-15 | 38 -> 41 | 632.20 -> 621.32 |
13 bloody tiles: 86% -> 71% |
| 2026-08-04 | 39 -> 38 | 632.20 | |
| 2026-08-03 | 40 -> 39 | 632.20 | |
| 2026-08-02 | 38 -> 40 | 632.20 |