Zarezin Ivan
From Yekaterinburg, Russia
EMA: 15020003
Common russian riichi rating (CRR)
Rating date April 11, 2025 (latest changes April 11, 2025).
28 place (624.47).
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 * 0.14 + 631.58 * 2.10 * 0.43 + 703.70 * 2.30 * 0.57 + 851.85 * 2.30 * 0.86 + 401.87 * 4.60 * 1 + 808.51 * 2.80 * 1 + 873.42 * 3.65 * 1) / (3.75 * 0.14 + 2.10 * 0.43 + 2.30 * 0.57 + 2.30 * 0.86 + 4.60 * 1 + 2.80 * 1 + 3.65 * 1) = 682.3999135148022
p2 = (873.42 * 3.65 * 1 + 808.51 * 2.80 * 1 + 401.87 * 4.60 * 1 + 851.85 * 2.30 * 0.86) / max_coefficients = 566.5413249211357
score = 682.3999135148022 * 0.5 + 566.5413249211357 * 0.5 = 624.470619217969
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-04-11 | 29 -> 28 | 622.14 -> 624.47 |
Money can not buy tenpai: 29% -> 14% |
| 2025-03-26 | 31 -> 29 | 622.14 | |
| 2025-03-10 | 32 -> 31 | 622.14 | |
| 2025-03-05 | 32 | 622.39 -> 622.14 |
Finding Dora: 71% -> 57% |
| 2025-03-03 | 31 -> 32 | 622.39 | |
| 2025-02-27 | 32 -> 31 | 621.98 -> 622.39 |
13 tiles until tempai: 57% -> 43% |
| 2025-02-25 | 30 -> 32 | 632.47 -> 621.98 |
Chasing Kan: 100% -> 86% |
| 2025-02-16 | 27 -> 30 | 632.47 | |
| 2025-02-11 | 28 -> 27 | 630.36 -> 632.47 |
Money can not buy tenpai: 43% -> 29% |
| 2025-02-02 | 27 -> 28 | 630.36 |