Kotova Velena
From Izhevsk, Russia
EMA: 15990160
Common russian riichi rating (CRR)
Rating date Sept. 1, 2023 (latest changes Sept. 1, 2023).
45 place (435.83).
how we calculated rating score
max_coefficients = (4.20 * 1 + 3.75 * 1 + 4.05 * 0.71 + 2.80 * 1) = 13.642914999999999
p1 = (893.33 * 4.20 * 1 + 447.76 * 3.50 * 0.57 + 241.38 * 3.75 * 1 + 0 + 0) / (4.20 * 1 + 3.50 * 0.57 + 3.75 * 1 + 1 + 1) = 464.66079214052
p2 = (893.33 * 4.20 * 1 + 241.38 * 3.75 * 1 + 447.76 * 3.50 * 0.57) / max_coefficients = 406.9987975443664
score = 464.66079214052 * 0.5 + 406.9987975443664 * 0.5 = 435.8297948424432
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-09-01 | 146 -> 45 | 318.09 -> 435.83 | |
| 2020-02-01 | 146 | 318.09 |