Zarezin Ivan
From Yekaterinburg, Russia
EMA: 15020003
Internal rating (RR)
Rating date Feb. 12, 2024 (latest changes Feb. 12, 2024).
57 place (338.56).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.71 + 4.05 * 0.29) = 11.907145000000002
p1 = (358.21 * 3.50 * 0.14 + 440 * 4.20 * 0.71 + 540.23 * 3.75 * 1 + 0 + 0) / (3.50 * 0.14 + 4.20 * 0.71 + 3.75 * 1 + 1 + 1) = 381.0778349896921
p2 = (540.23 * 3.75 * 1 + 440 * 4.20 * 0.71 + 358.21 * 3.50 * 0.14) / max_coefficients = 296.04493772436626
score = 381.0778349896921 * 0.5 + 296.04493772436626 * 0.5 = 338.56138635702916
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-02-12 | 62 -> 57 | 331.70 -> 338.56 | |
| 2024-01-20 | 63 -> 62 | 338.28 -> 331.70 |
Tenpai can't buy happiness: 29% -> 14% |
| 2024-01-06 | 65 -> 63 | 343.31 -> 338.28 |
IX Russian Riichi Championship: 86% -> 71% |
| 2023-12-19 | 67 -> 65 | 343.31 | |
| 2023-12-12 | 67 | 336.89 -> 343.31 | |
| 2023-11-28 | 72 -> 67 | 336.89 | |
| 2023-11-20 | 72 | 342.87 -> 336.89 |
Tenpai can't buy happiness: 43% -> 29% |
| 2023-11-06 | 72 | 347.25 -> 342.87 |
IX Russian Riichi Championship: 100% -> 86% |
| 2023-10-19 | 75 -> 72 | 347.25 | |
| 2023-10-12 | 76 -> 75 | 341.22 -> 347.25 |