Bogatikov Aleksander
From Moscow, Russia
EMA: 15990107
Internal rating (RR)
Rating date March 20, 2024 (latest changes March 20, 2024).
81 place (226.35).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 3.05 * 1 + 4.20 * 0.57) = 13.19988
p1 = (27.03 * 4.05 * 0.29 + 813.33 * 4.20 * 0.57 + 0 + 0 + 0) / (4.05 * 0.29 + 4.20 * 0.57 + 1 + 1 + 1) = 302.4524303545924
p2 = (813.33 * 4.20 * 0.57 + 27.03 * 4.05 * 0.29) / max_coefficients = 150.2415173471274
score = 302.4524303545924 * 0.5 + 150.2415173471274 * 0.5 = 226.3469738508599
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-03-20 | 88 -> 81 | 226.35 | |
| 2024-03-10 | 80 -> 88 | 238.92 -> 226.35 | |
| 2024-03-06 | 72 -> 80 | 276.42 -> 238.92 |
IX Russian Riichi Championship: 71% -> 57% |
| 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 |