Zarezin Ivan
From Yekaterinburg, Russia
EMA: 15020003
Internal rating (RR)
Rating date Jan. 26, 2025 (latest changes Jan. 26, 2025).
41 place (556.75).
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 * 0.43 + 401.87 * 4.60 * 1 + 808.51 * 2.80 * 1 + 873.42 * 3.65 * 1 + 0) / (3.75 * 0.43 + 4.60 * 1 + 2.80 * 1 + 3.65 * 1 + 1) = 598.1204122352597
p2 = (873.42 * 3.65 * 1 + 808.51 * 2.80 * 1 + 401.87 * 4.60 * 1 + 540.23 * 3.75 * 0.43) / max_coefficients = 515.3741324921135
score = 598.1204122352597 * 0.5 + 515.3741324921135 * 0.5 = 556.7472723636865
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-01-26 | 40 -> 41 | 556.75 | |
| 2025-01-07 | 38 -> 40 | 556.75 | |
| 2025-01-03 | 39 -> 38 | 556.75 | |
| 2024-12-11 | 38 -> 39 | 564.78 -> 556.75 |
Money can not buy tenpai: 57% -> 43% |
| 2024-11-06 | 35 -> 38 | 582.99 -> 564.78 |
IX Russian Riichi Championship: 14% -> 0% |
| 2024-11-03 | 36 -> 35 | 582.99 | |
| 2024-10-13 | 31 -> 36 | 588.52 -> 582.99 | |
| 2024-10-11 | 31 | 596.12 -> 588.52 |
Money can not buy tenpai: 71% -> 57% |
| 2024-09-06 | 31 | 592.32 -> 596.12 |
IX Russian Riichi Championship: 29% -> 14% |
| 2024-09-03 | 32 -> 31 | 582.32 -> 592.32 |