Bykova Yulia
From Moscow, Russia
EMA: 15990258
Internal rating (RR)
Rating date Dec. 17, 2025 (latest changes Dec. 13, 2025).
30 place (638.07).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (372.55 * 3.05 * 0.29 + 705.88 * 3.05 * 0.43 + 921.35 * 3.75 * 0.71 + 803.92 * 3.05 * 1 + 614.04 * 3.90 * 1) / (3.05 * 0.29 + 3.05 * 0.43 + 3.75 * 0.71 + 3.05 * 1 + 3.90 * 1) = 725.1508396543137
p2 = (921.35 * 3.75 * 0.71 + 803.92 * 3.05 * 1 + 614.04 * 3.90 * 1 + 705.88 * 3.05 * 0.43) / max_coefficients = 550.9966555183946
score = 725.1508396543137 * 0.5 + 550.9966555183946 * 0.5 = 638.0737475863541
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-12-13 | 28 -> 30 | 658.83 -> 638.07 |
Moscow Riichi 2024: 86% -> 71% |
| 2025-12-09 | 27 -> 28 | 668.64 -> 658.83 |
Agari Summer Tournament 2024: 57% -> 43% |
| 2025-11-30 | 24 -> 27 | 668.64 | |
| 2025-11-10 | 25 -> 24 | 662.70 -> 668.64 |
Agari Spring Tournament 2024: 43% -> 29% |
| 2025-11-04 | 43 -> 25 | 594.98 -> 662.70 |
XI Russian Championship: 0% -> 100% |
| 2025-11-01 | 47 -> 43 | 594.12 -> 594.98 | |
| 2025-10-13 | 39 -> 47 | 608.92 -> 594.12 |
Moscow Riichi 2024: 100% -> 86% |
| 2025-10-09 | 37 -> 39 | 619.38 -> 608.92 |
Agari Summer Tournament 2024: 71% -> 57% |
| 2025-10-04 | 40 -> 37 | 619.38 | |
| 2025-09-30 | 41 -> 40 | 619.38 |