Zarezin Ivan
From Yekaterinburg, Russia
EMA: 15020003
Common russian riichi rating (CRR)
Rating date May 12, 2024 (latest changes May 12, 2024).
44 place (525.95).
how we calculated rating score
max_coefficients = (4.60 * 1 + 4 * 1 + 3.75 * 1 + 3.05 * 1) = 15.399999999999999
p1 = (440 * 4.20 * 0.43 + 540.23 * 3.75 * 1 + 631.58 * 2.10 * 1 + 703.70 * 2.30 * 1 + 851.85 * 2.30 * 1 + 401.87 * 4.60 * 1) / (4.20 * 0.43 + 3.75 * 1 + 2.10 * 1 + 2.30 * 1 + 2.30 * 1 + 4.60 * 1) = 567.9846790408616
p2 = (540.23 * 3.75 * 1 + 851.85 * 2.30 * 1 + 401.87 * 4.60 * 1 + 703.70 * 2.30 * 1) / max_coefficients = 483.91168831168835
score = 567.9846790408616 * 0.5 + 483.91168831168835 * 0.5 = 525.948183676275
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-05-12 | 25 -> 44 | 568.10 -> 525.95 |
X Russian Championship: 0% -> 100% |
| 2024-05-06 | 27 -> 25 | 563.66 -> 568.10 |
IX Russian Riichi Championship: 57% -> 43% |
| 2024-04-18 | 29 -> 27 | 563.66 | |
| 2024-04-12 | 28 -> 29 | 563.66 | |
| 2024-03-30 | 29 -> 28 | 563.66 | |
| 2024-03-19 | 31 -> 29 | 558.61 -> 563.66 | |
| 2024-03-15 | 55 -> 31 | 390.54 -> 558.61 | |
| 2021-02-01 | 68 -> 55 | 496.26 -> 390.54 | |
| 2020-02-01 | 68 | 496.26 |