Kotova Velena
From Izhevsk, Russia
EMA: 15990160
Common russian riichi rating (CRR)
Rating date Sept. 6, 2023 (latest changes Sept. 6, 2023).
58 place (419.38).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 4.05 * 0.71) = 14.842915
p1 = (447.76 * 3.50 * 0.57 + 893.33 * 4.20 * 1 + 241.38 * 3.75 * 1 + 0 + 0) / (3.50 * 0.57 + 4.20 * 1 + 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 = 374.0943069471192
score = 464.66079214052 * 0.5 + 374.0943069471192 * 0.5 = 419.3775495438196
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-09-06 | 60 -> 58 | 419.38 | |
| 2023-09-03 | 45 -> 60 | 435.83 -> 419.38 | |
| 2023-09-01 | 146 -> 45 | 318.09 -> 435.83 | |
| 2020-02-01 | 146 | 318.09 |