Bogatikov Aleksander
From Moscow, Russia
EMA: 15990107
Common russian riichi rating (CRR)
Rating date March 20, 2024 (latest changes March 20, 2024).
106 place (253.62).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 3.05 * 1 + 2.90 * 1) = 13.700000000000001
p1 = (27.03 * 4.05 * 0.29 + 813.33 * 4.20 * 0.57 + 230.77 * 2.90 * 1 + 0 + 0) / (4.05 * 0.29 + 4.20 * 0.57 + 2.90 * 1 + 1 + 1) = 313.63497424903613
p2 = (813.33 * 4.20 * 0.57 + 230.77 * 2.90 * 1 + 27.03 * 4.05 * 0.29) / max_coefficients = 193.6058394160584
score = 313.63497424903613 * 0.5 + 193.6058394160584 * 0.5 = 253.62040683254725
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-03-20 | 109 -> 106 | 253.62 | |
| 2024-03-14 | 110 -> 109 | 253.62 | |
| 2024-03-10 | 105 -> 110 | 258.44 -> 253.62 | |
| 2024-03-09 | 106 -> 105 | 258.44 | |
| 2024-03-06 | 99 -> 106 | 288.41 -> 258.44 |
IX Russian Riichi Championship: 71% -> 57% |
| 2024-03-03 | 100 -> 99 | 288.41 | |
| 2024-02-25 | 97 -> 100 | 288.41 | |
| 2024-02-20 | 96 -> 97 | 288.41 | |
| 2024-02-12 | 99 -> 96 | 279.38 -> 288.41 |
Moscow Riichi 2022: 43% -> 29% |
| 2024-01-20 | 101 -> 99 | 279.38 |