Bogatikov Aleksander
From Moscow, Russia
EMA: 15990107
Internal rating (RR)
Rating date May 6, 2024 (latest changes May 6, 2024).
91 place (194.91).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 3.05 * 1 + 2.10 * 1) = 12.9
p1 = (27.03 * 4.05 * 0.14 + 813.33 * 4.20 * 0.43 + 0 + 0 + 0) / (4.05 * 0.14 + 4.20 * 0.43 + 1 + 1 + 1) = 275.10264711979204
p2 = (813.33 * 4.20 * 0.43 + 27.03 * 4.05 * 0.14) / max_coefficients = 114.70852713178294
score = 275.10264711979204 * 0.5 + 114.70852713178294 * 0.5 = 194.9055871257875
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-05-06 | 82 -> 91 | 239.08 -> 194.91 |
IX Russian Riichi Championship: 57% -> 43% |
| 2024-04-12 | 89 -> 82 | 226.35 -> 239.08 |
Moscow Riichi 2022: 29% -> 14% |
| 2024-03-30 | 81 -> 89 | 226.35 | |
| 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 |