Zarezin Ivan
From Yekaterinburg, Russia
EMA: 15020003
Common russian riichi rating (CRR)
Rating date Jan. 14, 2025 (latest changes Jan. 14, 2025).
26 place (630.36).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85
p1 = (540.23 * 3.75 * 0.43 + 631.58 * 2.10 * 0.57 + 703.70 * 2.30 * 0.71 + 851.85 * 2.30 * 1 + 401.87 * 4.60 * 1 + 808.51 * 2.80 * 1 + 873.42 * 3.65 * 1) / (3.75 * 0.43 + 2.10 * 0.57 + 2.30 * 0.71 + 2.30 * 1 + 4.60 * 1 + 2.80 * 1 + 3.65 * 1) = 676.5087572640124
p2 = (873.42 * 3.65 * 1 + 808.51 * 2.80 * 1 + 851.85 * 2.30 * 1 + 401.87 * 4.60 * 1) / max_coefficients = 584.2056782334384
score = 676.5087572640124 * 0.5 + 584.2056782334384 * 0.5 = 630.3572177487254
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-01-07 | 25 -> 26 | 630.36 | |
| 2025-01-05 | 25 | 630.60 -> 630.36 |
Finding Dora: 86% -> 71% |
| 2025-01-03 | 27 -> 25 | 630.60 | |
| 2024-12-27 | 27 | 630.23 -> 630.60 |
13 tiles until tempai: 71% -> 57% |
| 2024-12-11 | 28 -> 27 | 628.31 -> 630.23 |
Money can not buy tenpai: 57% -> 43% |
| 2024-12-01 | 26 -> 28 | 628.31 | |
| 2024-11-26 | 27 -> 26 | 628.31 | |
| 2024-11-05 | 29 -> 27 | 625.07 -> 628.31 |
Finding Dora: 100% -> 86% |
| 2024-11-03 | 31 -> 29 | 625.07 | |
| 2024-10-27 | 31 | 624.81 -> 625.07 |
13 tiles until tempai: 86% -> 71% |