Zarezin Ivan
From Yekaterinburg, Russia
EMA: 15020003
Common russian riichi rating (CRR)
Rating date Nov. 9, 2023 (latest changes Nov. 9, 2023).
35 place (499.24).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.86 + 2.80 * 1) = 14.149820000000002
p1 = (358.21 * 3.50 * 0.43 + 440 * 4.20 * 0.86 + 540.23 * 3.75 * 1 + 631.58 * 2.10 * 1 + 703.70 * 2.30 * 1) / (3.50 * 0.43 + 4.20 * 0.86 + 3.75 * 1 + 2.10 * 1 + 2.30 * 1) = 535.2462505433995
p2 = (540.23 * 3.75 * 1 + 703.70 * 2.30 * 1 + 440 * 4.20 * 0.86 + 631.58 * 2.10 * 1) / max_coefficients = 463.2299209459908
score = 535.2462505433995 * 0.5 + 463.2299209459908 * 0.5 = 499.2380857446951
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-11-06 | 37 -> 35 | 496.70 -> 499.24 |
IX Russian Riichi Championship: 100% -> 86% |
| 2023-11-05 | 57 -> 37 | 423.08 -> 496.70 |
Finding Dora: 0% -> 100% |
| 2023-10-22 | 56 -> 57 | 423.08 | |
| 2023-10-12 | 58 -> 56 | 421.86 -> 423.08 | |
| 2023-09-28 | 57 -> 58 | 421.86 | |
| 2023-09-20 | 56 -> 57 | 426.00 -> 421.86 |
Tenpai can't buy happiness: 57% -> 43% |
| 2023-09-06 | 57 -> 56 | 426.00 | |
| 2023-09-03 | 41 -> 57 | 443.53 -> 426.00 | |
| 2023-08-27 | 69 -> 41 | 360.29 -> 443.53 |
13 tiles until tempai: 0% -> 100% |
| 2023-08-19 | 70 -> 69 | 360.29 |