Datkov Sergey
From Yekaterinburg, Russia
Common russian riichi rating (CRR)
Rating date March 23, 2025 (latest changes March 23, 2025).
189 place (225.39).
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 * 0.43 + 296.30 * 2.30 * 0.57 + 555.56 * 2.30 * 0.86 + 0 + 0) / (2.10 * 0.43 + 2.30 * 0.57 + 2.30 * 0.86 + 1 + 1) = 324.2477298116112
p2 = (555.56 * 2.30 * 0.86 + 578.95 * 2.10 * 0.43 + 296.30 * 2.30 * 0.57) / max_coefficients = 126.54069400630915
score = 324.2477298116112 * 0.5 + 126.54069400630915 * 0.5 = 225.39421190896016
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-03-23 | 183 -> 189 | 225.39 | |
| 2025-03-10 | 184 -> 183 | 225.39 | |
| 2025-03-05 | 182 -> 184 | 227.76 -> 225.39 |
Finding Dora: 71% -> 57% |
| 2025-03-03 | 185 -> 182 | 227.76 | |
| 2025-03-02 | 182 -> 185 | 227.76 | |
| 2025-02-27 | 178 -> 182 | 238.87 -> 227.76 |
13 tiles until tempai: 57% -> 43% |
| 2025-02-25 | 174 -> 178 | 249.73 -> 238.87 |
Chasing Kan: 100% -> 86% |
| 2025-02-16 | 165 -> 174 | 249.73 | |
| 2025-02-11 | 166 -> 165 | 249.73 | |
| 2025-02-02 | 159 -> 166 | 249.73 |