Datkov Sergey
From Yekaterinburg, Russia
Common russian riichi rating (CRR)
Rating date Feb. 22, 2025 (latest changes Feb. 22, 2025).
174 place (249.73).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85
p1 = (578.95 * 2.10 * 0.57 + 296.30 * 2.30 * 0.71 + 555.56 * 2.30 * 1 + 0 + 0) / (2.10 * 0.57 + 2.30 * 0.71 + 2.30 * 1 + 1 + 1) = 344.2977083312917
p2 = (555.56 * 2.30 * 1 + 578.95 * 2.10 * 0.57 + 296.30 * 2.30 * 0.71) / max_coefficients = 155.15835962145113
score = 344.2977083312917 * 0.5 + 155.15835962145113 * 0.5 = 249.72803397637142
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-02-16 | 165 -> 174 | 249.73 | |
| 2025-02-11 | 166 -> 165 | 249.73 | |
| 2025-02-02 | 159 -> 166 | 249.73 | |
| 2025-01-26 | 152 -> 159 | 249.73 | |
| 2025-01-07 | 149 -> 152 | 249.73 | |
| 2025-01-05 | 149 | 251.74 -> 249.73 |
Finding Dora: 86% -> 71% |
| 2025-01-04 | 146 -> 149 | 251.74 | |
| 2025-01-03 | 145 -> 146 | 251.74 | |
| 2024-12-29 | 144 -> 145 | 251.74 | |
| 2024-12-27 | 142 -> 144 | 261.80 -> 251.74 |
13 tiles until tempai: 71% -> 57% |