Bogatikov Aleksander
From Moscow, Russia
EMA: 15990107
Internal rating (RR)
Rating date Nov. 28, 2023 (latest changes Nov. 28, 2023).
84 place (277.16).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.86 + 4.05 * 0.57) = 13.663990000000002
p1 = (27.03 * 4.05 * 0.57 + 813.33 * 4.20 * 0.86 + 0 + 0 + 0) / (4.05 * 0.57 + 4.20 * 0.86 + 1 + 1 + 1) = 335.4726671221305
p2 = (813.33 * 4.20 * 0.86 + 27.03 * 4.05 * 0.57) / max_coefficients = 218.85261918370838
score = 335.4726671221305 * 0.5 + 218.85261918370838 * 0.5 = 277.16264315291943
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-11-28 | 83 -> 84 | 294.86 -> 277.16 |
Saint Petersburg Open 2021: 14% -> 0% |
| 2023-11-20 | 84 -> 83 | 294.86 | |
| 2023-11-06 | 81 -> 84 | 322.18 -> 294.86 |
IX Russian Riichi Championship: 100% -> 86% |
| 2023-10-12 | 86 -> 81 | 306.73 -> 322.18 |
Moscow Riichi 2022: 71% -> 57% |
| 2023-09-28 | 87 -> 86 | 304.19 -> 306.73 |
Saint Petersburg Open 2021: 29% -> 14% |
| 2023-09-20 | 89 -> 87 | 304.19 | |
| 2023-09-03 | 67 -> 89 | 323.35 -> 304.19 | |
| 2023-08-19 | 68 -> 67 | 323.35 | |
| 2023-08-12 | 76 -> 68 | 308.71 -> 323.35 |
Moscow Riichi 2022: 86% -> 71% |
| 2023-07-28 | 80 -> 76 | 307.57 -> 308.71 |
Saint Petersburg Open 2021: 43% -> 29% |