Bogatikov Aleksander
From Moscow, Russia
EMA: 15990107
Common russian riichi rating (CRR)
Rating date Sept. 3, 2023 (latest changes Sept. 3, 2023).
110 place (304.19).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 4.05 * 0.71) = 14.842915
p1 = (160 * 3.45 * 0.29 + 27.03 * 4.05 * 0.71 + 813.33 * 4.20 * 1 + 0 + 0) / (3.45 * 0.29 + 4.05 * 0.71 + 4.20 * 1 + 1 + 1) = 362.3427109771416
p2 = (813.33 * 4.20 * 1 + 160 * 3.45 * 0.29 + 27.03 * 4.05 * 0.71) / max_coefficients = 246.03657704702886
score = 362.3427109771416 * 0.5 + 246.03657704702886 * 0.5 = 304.18964401208524
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-09-03 | 87 -> 110 | 315.01 -> 304.19 | |
| 2023-08-27 | 86 -> 87 | 315.01 | |
| 2023-08-20 | 87 -> 86 | 315.01 | |
| 2023-08-12 | 93 -> 87 | 301.02 -> 315.01 |
Moscow Riichi 2022: 86% -> 71% |
| 2023-07-28 | 94 -> 93 | 299.72 -> 301.02 |
Saint Petersburg Open 2021: 43% -> 29% |
| 2023-07-06 | 96 -> 94 | 299.72 | |
| 2023-07-03 | 97 -> 96 | 299.72 | |
| 2023-06-19 | 98 -> 97 | 299.72 | |
| 2023-06-12 | 103 -> 98 | 287.47 -> 299.72 |
Moscow Riichi 2022: 100% -> 86% |
| 2023-06-11 | 84 -> 103 | 299.20 -> 287.47 |