Bogatikov Aleksander
From Moscow, Russia
EMA: 15990107
Common russian riichi rating (CRR)
Rating date Sept. 3, 2024 (latest changes Sept. 3, 2024).
165 place (168.83).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.65 * 1 + 4 * 0.86) = 15.5284
p1 = (813.33 * 4.20 * 0.29 + 230.77 * 2.90 * 1 + 0 + 0 + 0) / (4.20 * 0.29 + 2.90 * 1 + 1 + 1 + 1) = 231.71745113338986
p2 = (813.33 * 4.20 * 0.29 + 230.77 * 2.90 * 1) / max_coefficients = 105.94652378867109
score = 231.71745113338986 * 0.5 + 105.94652378867109 * 0.5 = 168.83198746103048
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-09-03 | 165 | 166.95 -> 168.83 | |
| 2024-09-01 | 158 -> 165 | 169.62 -> 166.95 | |
| 2024-08-26 | 160 -> 158 | 169.62 | |
| 2024-08-25 | 161 -> 160 | 169.62 | |
| 2024-08-11 | 162 -> 161 | 169.05 -> 169.62 | |
| 2024-08-04 | 159 -> 162 | 171.20 -> 169.05 | |
| 2024-07-14 | 153 -> 159 | 171.20 | |
| 2024-07-09 | 155 -> 153 | 171.20 | |
| 2024-07-06 | 146 -> 155 | 210.29 -> 171.20 |
IX Russian Riichi Championship: 43% -> 29% |
| 2024-06-27 | 148 -> 146 | 210.29 |