Bykova Yulia
From Arkhangelsk, Russia
EMA: 15990258
Common russian riichi rating (CRR)
Rating date July 6, 2023 (latest changes July 6, 2023).
149 place (123.56).
how we calculated rating score
max_coefficients = (4.20 * 1 + 3.75 * 1 + 4.05 * 0.86 + 2.80 * 1) = 14.221255
p1 = (509.09 * 3.30 * 0.29 + 333.33 * 3.45 * 0.43 + 81.08 * 4.05 * 0.86 + 0 + 0) / (3.30 * 0.29 + 3.45 * 0.43 + 4.05 * 0.86 + 1 + 1) = 158.92083035855123
p2 = (333.33 * 3.45 * 0.43 + 509.09 * 3.30 * 0.29 + 81.08 * 4.05 * 0.86) / max_coefficients = 88.2003733144508
score = 158.92083035855123 * 0.5 + 88.2003733144508 * 0.5 = 123.56060183650101
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-07-06 | 146 -> 149 | 141.87 -> 123.56 |
Kirov Tournament: 43% -> 29% |
| 2023-07-03 | 147 -> 146 | 141.87 | |
| 2023-06-12 | 147 | 138.25 -> 141.87 |
Moscow Riichi 2022: 100% -> 86% |
| 2023-06-11 | 131 -> 147 | 143.05 -> 138.25 | |
| 2023-05-28 | 129 -> 131 | 153.31 -> 143.05 |
Saint Petersburg Open 2021: 57% -> 43% |
| 2023-05-20 | 130 -> 129 | 151.07 -> 153.31 | |
| 2023-05-06 | 128 -> 130 | 167.42 -> 151.07 |
Kirov Tournament: 57% -> 43% |
| 2023-05-05 | 21 -> 128 | 630.94 -> 167.42 | |
| 2021-02-01 | 25 -> 21 | 664.42 -> 630.94 | |
| 2020-02-01 | 25 | 664.42 |