Kotova Velena
From Izhevsk, Russia
EMA: 15990160
Common russian riichi rating (CRR)
Rating date March 6, 2023 (latest changes March 6, 2023).
43 place (431.35).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 1 + 2.80 * 1) = 14.55
p1 = (447.76 * 3.50 * 1 + 893.33 * 4.20 * 1 + 0 + 0 + 0) / (3.50 * 1 + 4.20 * 1 + 1 + 1 + 1) = 497.11775700934584
p2 = (893.33 * 4.20 * 1 + 447.76 * 3.50 * 1) / max_coefficients = 365.5780068728522
score = 497.11775700934584 * 0.5 + 365.5780068728522 * 0.5 = 431.347881941099
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-03-06 | 44 -> 43 | 431.35 | |
| 2023-02-25 | 42 -> 44 | 431.35 | |
| 2023-02-19 | 43 -> 42 | 431.35 | |
| 2023-01-28 | 46 -> 43 | 429.40 -> 431.35 | |
| 2022-12-19 | 48 -> 46 | 427.66 -> 429.40 | |
| 2022-12-18 | 45 -> 48 | 427.66 | |
| 2022-12-03 | 146 -> 45 | 318.09 -> 427.66 | |
| 2020-02-01 | 146 | 318.09 |