Zarezin Ivan
From Yekaterinburg, Russia
EMA: 15020003
Common russian riichi rating (CRR)
Rating date Nov. 20, 2023 (latest changes Nov. 20, 2023).
33 place (502.71).
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 * 0.29 + 440 * 4.20 * 0.86 + 540.23 * 3.75 * 1 + 631.58 * 2.10 * 1 + 703.70 * 2.30 * 1) / (3.50 * 0.29 + 4.20 * 0.86 + 3.75 * 1 + 2.10 * 1 + 2.30 * 1) = 542.1909571702079
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 = 542.1909571702079 * 0.5 + 463.2299209459908 * 0.5 = 502.7104390580993
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-11-20 | 35 -> 33 | 499.24 -> 502.71 |
Tenpai can't buy happiness: 43% -> 29% |
| 2023-11-06 | 54 -> 35 | 390.54 -> 499.24 |
IX Russian Riichi Championship: 100% -> 86% |
| 2021-02-01 | 67 -> 54 | 496.26 -> 390.54 | |
| 2020-02-01 | 67 | 496.26 |