Zarezin Ivan
From Yekaterinburg, Russia
EMA: 15020003
Common russian riichi rating (CRR)
Rating date Dec. 1, 2024 (latest changes Dec. 1, 2024).
28 place (628.31).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85
p1 = (631.58 * 2.10 * 0.71 + 540.23 * 3.75 * 0.57 + 401.87 * 4.60 * 1 + 808.51 * 2.80 * 1 + 873.42 * 3.65 * 1 + 703.70 * 2.30 * 0.86 + 851.85 * 2.30 * 1) / (2.10 * 0.71 + 3.75 * 0.57 + 4.60 * 1 + 2.80 * 1 + 3.65 * 1 + 2.30 * 0.86 + 2.30 * 1) = 672.4206936154661
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 = 672.4206936154661 * 0.5 + 584.2056782334384 * 0.5 = 628.3131859244522
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 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% |
| 2024-10-22 | 32 -> 31 | 624.81 | |
| 2024-10-13 | 29 -> 32 | 630.86 -> 624.81 | |
| 2024-10-11 | 32 -> 29 | 629.24 -> 630.86 |
Money can not buy tenpai: 71% -> 57% |
| 2024-09-06 | 33 -> 32 | 626.12 -> 629.24 |
IX Russian Riichi Championship: 29% -> 14% |
| 2024-09-03 | 33 | 615.53 -> 626.12 |