Bogatikov Aleksander
From Moscow, Russia
EMA: 15990107
Common russian riichi rating (CRR)
Rating date Oct. 22, 2023 (latest changes Oct. 22, 2023).
103 place (318.07).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 2.80 * 1) = 14.75
p1 = (160 * 3.45 * 0.14 + 27.03 * 4.05 * 0.57 + 813.33 * 4.20 * 1 + 0 + 0) / (3.45 * 0.14 + 4.05 * 0.57 + 4.20 * 1 + 1 + 1) = 394.95513299119864
p2 = (813.33 * 4.20 * 1 + 160 * 3.45 * 0.14 + 27.03 * 4.05 * 0.57) / max_coefficients = 241.18169491525427
score = 394.95513299119864 * 0.5 + 241.18169491525427 * 0.5 = 318.06841395322647
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-10-22 | 100 -> 103 | 318.07 | |
| 2023-10-12 | 106 -> 100 | 306.73 -> 318.07 |
Moscow Riichi 2022: 71% -> 57% |
| 2023-09-28 | 107 -> 106 | 304.19 -> 306.73 |
Saint Petersburg Open 2021: 29% -> 14% |
| 2023-09-20 | 109 -> 107 | 304.19 | |
| 2023-09-06 | 110 -> 109 | 304.19 | |
| 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% |