Zarezin Ivan
From Yekaterinburg, Russia
EMA: 15020003
Common russian riichi rating (CRR)
Rating date March 14, 2024 (latest changes March 14, 2024).
31 place (558.73).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 3.05 * 1 + 2.90 * 1) = 13.700000000000001
p1 = (631.58 * 2.10 * 1 + 358.21 * 3.50 * 0.14 + 440 * 4.20 * 0.57 + 540.23 * 3.75 * 1 + 703.70 * 2.30 * 1 + 851.85 * 2.30 * 1) / (2.10 * 1 + 3.50 * 0.14 + 4.20 * 0.57 + 3.75 * 1 + 2.30 * 1 + 2.30 * 1) = 611.6143559227957
p2 = (540.23 * 3.75 * 1 + 851.85 * 2.30 * 1 + 703.70 * 2.30 * 1 + 631.58 * 2.10 * 1) / max_coefficients = 505.8364963503649
score = 611.6143559227957 * 0.5 + 505.8364963503649 * 0.5 = 558.7254261365803
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-03-10 | 25 -> 31 | 571.33 -> 558.73 | |
| 2024-03-06 | 26 -> 25 | 555.96 -> 571.33 |
IX Russian Riichi Championship: 71% -> 57% |
| 2024-02-27 | 25 -> 26 | 555.96 | |
| 2024-02-25 | 31 -> 25 | 508.10 -> 555.96 |
Chasing Kan: 0% -> 100% |
| 2024-02-12 | 32 -> 31 | 508.10 | |
| 2024-01-20 | 33 -> 32 | 504.05 -> 508.10 |
Tenpai can't buy happiness: 29% -> 14% |
| 2024-01-06 | 32 -> 33 | 501.09 -> 504.05 |
IX Russian Riichi Championship: 86% -> 71% |
| 2023-11-28 | 33 -> 32 | 501.09 | |
| 2023-11-26 | 33 | 502.71 -> 501.09 | |
| 2023-11-20 | 35 -> 33 | 499.24 -> 502.71 |
Tenpai can't buy happiness: 43% -> 29% |