Kotova Velena
From Izhevsk, Russia
EMA: 15990160
Internal rating (RR)
Rating date Nov. 8, 2023 (latest changes Nov. 8, 2023).
54 place (396.24).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.86 + 4.05 * 0.57) = 13.663990000000002
p1 = (447.76 * 3.50 * 0.43 + 893.33 * 4.20 * 0.86 + 241.38 * 3.75 * 1 + 0 + 0) / (3.50 * 0.43 + 4.20 * 0.86 + 3.75 * 1 + 1 + 1) = 441.7267592756444
p2 = (893.33 * 4.20 * 0.86 + 241.38 * 3.75 * 1 + 447.76 * 3.50 * 0.43) / max_coefficients = 350.75406232001046
score = 441.7267592756444 * 0.5 + 350.75406232001046 * 0.5 = 396.2404107978274
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-11-06 | 123 -> 54 | 322.92 -> 396.24 |
IX Russian Riichi Championship: 100% -> 86% |
| 2020-02-01 | 123 | 322.92 |