Zarezin Ivan
From Yekaterinburg, Russia
EMA: 15020003
Common russian riichi rating (CRR)
Rating date June 11, 2025 (latest changes June 11, 2025).
37 place (626.65).
how we calculated rating score
max_coefficients = (4.60 * 0.86 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.19266
p1 = (631.58 * 2.10 * 0.29 + 703.70 * 2.30 * 0.43 + 851.85 * 2.30 * 0.71 + 401.87 * 4.60 * 0.86 + 808.51 * 2.80 * 1 + 873.42 * 3.65 * 1) / (2.10 * 0.29 + 2.30 * 0.43 + 2.30 * 0.71 + 4.60 * 0.86 + 2.80 * 1 + 3.65 * 1) = 698.050846835471
p2 = (873.42 * 3.65 * 1 + 808.51 * 2.80 * 1 + 401.87 * 4.60 * 0.86 + 851.85 * 2.30 * 0.71) / max_coefficients = 555.2503643206653
score = 698.050846835471 * 0.5 + 555.2503643206653 * 0.5 = 626.6506055780682
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-06-11 | 38 -> 37 | 623.66 -> 626.65 |
Money can not buy tenpai: 14% -> 0% |
| 2025-06-09 | 39 -> 38 | 623.66 | |
| 2025-05-30 | 40 -> 39 | 623.66 | |
| 2025-05-12 | 42 -> 40 | 614.05 -> 623.66 |
X Russian Championship: 100% -> 86% |
| 2025-05-05 | 42 | 614.31 -> 614.05 |
Finding Dora: 57% -> 43% |
| 2025-05-03 | 34 -> 42 | 614.31 | |
| 2025-04-27 | 34 | 613.84 -> 614.31 |
13 tiles until tempai: 43% -> 29% |
| 2025-04-26 | 33 -> 34 | 613.84 | |
| 2025-04-25 | 28 -> 33 | 624.47 -> 613.84 |
Chasing Kan: 86% -> 71% |
| 2025-04-11 | 29 -> 28 | 622.14 -> 624.47 |
Money can not buy tenpai: 29% -> 14% |