Zarezin Ivan
From Yekaterinburg, Russia
EMA: 15020003
Internal rating (RR)
Rating date Dec. 19, 2023 (latest changes Dec. 19, 2023).
65 place (343.31).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.86 + 4.05 * 0.43) = 13.085650000000001
p1 = (358.21 * 3.50 * 0.29 + 440 * 4.20 * 0.86 + 540.23 * 3.75 * 1 + 0 + 0) / (3.50 * 0.29 + 4.20 * 0.86 + 3.75 * 1 + 1 + 1) = 383.38726367832334
p2 = (540.23 * 3.75 * 1 + 440 * 4.20 * 0.86 + 358.21 * 3.50 * 0.29) / max_coefficients = 303.23063814178124
score = 383.38726367832334 * 0.5 + 303.23063814178124 * 0.5 = 343.3089509100523
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 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 | |
| 2023-09-20 | 75 -> 76 | 346.69 -> 341.22 |
Tenpai can't buy happiness: 57% -> 43% |
| 2023-09-06 | 76 -> 75 | 346.69 | |
| 2023-09-03 | 56 -> 76 | 370.77 -> 346.69 |