Shirshov Alexander
From Saint Petersburg, Russia
EMA: 15990308
Common russian riichi rating (CRR)
Rating date May 20, 2023 (latest changes May 20, 2023).
22 place (563.33).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4.05 * 1 + 2.80 * 1 + 3.50 * 0.71) = 13.55005
p1 = (741.94 * 1.80 * 1 + 946.67 * 3.45 * 0.57 + 565.22 * 1.40 * 1 + 923.08 * 1.80 * 1 + 0) / (1.80 * 1 + 3.45 * 0.57 + 1.40 * 1 + 1.80 * 1 + 1) = 709.3559042217547
p2 = (946.67 * 3.45 * 0.57 + 923.08 * 1.80 * 1 + 741.94 * 1.80 * 1 + 565.22 * 1.40 * 1) / max_coefficients = 417.3054711975233
score = 709.3559042217547 * 0.5 + 417.3054711975233 * 0.5 = 563.330687709639
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-05-20 | 21 -> 22 | 555.91 -> 563.33 | |
| 2023-05-06 | 22 -> 21 | 555.91 | |
| 2023-05-05 | 145 -> 22 | 137.10 -> 555.91 | |
| 2021-02-01 | 89 -> 145 | 460.67 -> 137.10 | |
| 2020-02-01 | 89 | 460.67 |