Bogatikov Aleksander
From Moscow, Russia
EMA: 15990107
Internal rating (RR)
Rating date July 28, 2023 (latest changes July 28, 2023).
76 place (308.71).
how we calculated rating score
max_coefficients = (4.20 * 1 + 3.75 * 1 + 4.05 * 0.86 + 3.50 * 0.57) = 13.421155
p1 = (160 * 3.45 * 0.29 + 27.03 * 4.05 * 0.86 + 813.33 * 4.20 * 1 + 0 + 0) / (3.45 * 0.29 + 4.05 * 0.86 + 4.20 * 1 + 1 + 1) = 344.1454003595786
p2 = (813.33 * 4.20 * 1 + 160 * 3.45 * 0.29 + 27.03 * 4.05 * 0.86) / max_coefficients = 273.26485686217023
score = 344.1454003595786 * 0.5 + 273.26485686217023 * 0.5 = 308.70512861087445
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-07-28 | 80 -> 76 | 307.57 -> 308.71 |
Saint Petersburg Open 2021: 43% -> 29% |
| 2023-07-20 | 80 | 302.56 -> 307.57 | |
| 2023-07-06 | 81 -> 80 | 302.56 | |
| 2023-06-19 | 82 -> 81 | 302.56 | |
| 2023-06-12 | 85 -> 82 | 290.10 -> 302.56 |
Moscow Riichi 2022: 100% -> 86% |
| 2023-06-11 | 66 -> 85 | 310.60 -> 290.10 | |
| 2023-05-28 | 67 -> 66 | 308.10 -> 310.60 |
Saint Petersburg Open 2021: 57% -> 43% |
| 2023-05-20 | 68 -> 67 | 302.39 -> 308.10 | |
| 2023-05-05 | 107 -> 68 | 378.88 -> 302.39 | |
| 2020-02-01 | 107 | 378.88 |