Bogatikov Aleksander
From Moscow, Russia
EMA: 15990107
Internal rating (RR)
Rating date Feb. 12, 2024 (latest changes Feb. 12, 2024).
72 place (276.42).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.71 + 4.05 * 0.29) = 11.907145000000002
p1 = (27.03 * 4.05 * 0.29 + 813.33 * 4.20 * 0.71 + 0 + 0 + 0) / (4.05 * 0.29 + 4.20 * 0.71 + 1 + 1 + 1) = 345.2941081953768
p2 = (813.33 * 4.20 * 0.71 + 27.03 * 4.05 * 0.29) / max_coefficients = 207.5493327745652
score = 345.2941081953768 * 0.5 + 207.5493327745652 * 0.5 = 276.421720484971
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-02-12 | 77 -> 72 | 260.33 -> 276.42 |
Moscow Riichi 2022: 43% -> 29% |
| 2024-01-20 | 80 -> 77 | 260.33 | |
| 2024-01-06 | 71 -> 80 | 292.10 -> 260.33 |
IX Russian Riichi Championship: 86% -> 71% |
| 2023-12-19 | 74 -> 71 | 292.10 | |
| 2023-12-12 | 84 -> 74 | 277.16 -> 292.10 |
Moscow Riichi 2022: 57% -> 43% |
| 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% |