Bykova Yulia
From Arkhangelsk, Russia
EMA: 15990258
Common russian riichi rating (CRR)
Rating date Sept. 28, 2023 (latest changes Sept. 28, 2023).
174 place (76.07).
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 * 0.14 + 81.08 * 4.05 * 0.71 + 0 + 0) / (3.30 * 0.14 + 3.45 * 0.14 + 4.05 * 0.71 + 1 + 1) = 109.08597368497428
p2 = (509.09 * 3.30 * 0.14 + 81.08 * 4.05 * 0.71 + 333.33 * 3.45 * 0.14) / max_coefficients = 43.04882160950191
score = 109.08597368497428 * 0.5 + 43.04882160950191 * 0.5 = 76.0673976472381
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-09-28 | 173 -> 174 | 90.30 -> 76.07 |
Saint Petersburg Open 2021: 29% -> 14% |
| 2023-09-09 | 174 -> 173 | 90.30 | |
| 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% |