Bykova Yulia
From Arkhangelsk, Russia
EMA: 15990258
Common russian riichi rating (CRR)
Rating date Sept. 6, 2023 (latest changes Sept. 6, 2023).
174 place (90.30).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 4.05 * 0.71) = 14.842915
p1 = (509.09 * 3.30 * 0.14 + 333.33 * 3.45 * 0.29 + 81.08 * 4.05 * 0.71 + 0 + 0) / (3.30 * 0.14 + 3.45 * 0.29 + 4.05 * 0.71 + 1 + 1) = 126.48362637103061
p2 = (333.33 * 3.45 * 0.29 + 509.09 * 3.30 * 0.14 + 81.08 * 4.05 * 0.71) / max_coefficients = 54.11268608625732
score = 126.48362637103061 * 0.5 + 54.11268608625732 * 0.5 = 90.29815622864396
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-09-06 | 172 -> 174 | 111.60 -> 90.30 |
Kirov Tournament: 29% -> 14% |
| 2023-09-03 | 156 -> 172 | 114.69 -> 111.60 | |
| 2023-08-27 | 151 -> 156 | 114.69 | |
| 2023-08-26 | 149 -> 151 | 114.69 | |
| 2023-08-12 | 149 | 111.97 -> 114.69 |
Moscow Riichi 2022: 86% -> 71% |
| 2023-07-28 | 148 -> 149 | 123.56 -> 111.97 |
Saint Petersburg Open 2021: 43% -> 29% |
| 2023-07-20 | 149 -> 148 | 123.56 | |
| 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% |