Alekseeva Olga
From Moscow, Russia
EMA: 15990342
Internal rating (RR)
Rating date Sept. 4, 2025 (latest changes Sept. 3, 2025).
20 place (705.39).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8
p1 = (98.04 * 3.05 * 0.57 + 352.94 * 3.05 * 0.71 + 715.79 * 3.85 * 0.86 + 292.13 * 3.75 * 1 + 595.24 * 2.60 * 1 + 784.31 * 3.05 * 1 + 966.10 * 3.25 * 1 + 942.86 * 3.50 * 1 + 727.27 * 3.45 * 1) / (3.05 * 0.57 + 3.05 * 0.71 + 3.85 * 0.86 + 3.75 * 1 + 2.60 * 1 + 3.05 * 1 + 3.25 * 1 + 3.50 * 1 + 3.45 * 1) = 644.4889531497822
p2 = (942.86 * 3.50 * 1 + 966.10 * 3.25 * 1 + 727.27 * 3.45 * 1 + 784.31 * 3.05 * 1) / max_coefficients = 766.2891891891892
score = 644.4889531497822 * 0.5 + 766.2891891891892 * 0.5 = 705.3890711694858
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-09-03 | 17 -> 20 | 732.55 -> 705.39 |
SPB Riichi Open 2023: 14% -> 0% |
| 2025-09-01 | 13 -> 17 | 734.62 -> 732.55 |
SPB Riichi Open 2024: 100% -> 86% |
| 2025-08-31 | 15 -> 13 | 697.63 -> 734.62 |
SPB Riichi Open 2025: 0% -> 100% |
| 2025-08-09 | 17 -> 15 | 695.19 -> 697.63 |
Agari Summer Tournament 2024: 86% -> 71% |
| 2025-08-04 | 20 -> 17 | 691.46 -> 695.19 | |
| 2025-08-03 | 19 -> 20 | 691.46 | |
| 2025-07-12 | 22 -> 19 | 684.40 -> 691.46 | |
| 2025-07-10 | 24 -> 22 | 679.85 -> 684.40 |
Agari Spring Tournament 2024: 71% -> 57% |
| 2025-07-03 | 24 | 679.41 -> 679.85 |
SPB Riichi Open 2023: 29% -> 14% |
| 2025-06-15 | 20 -> 24 | 690.38 -> 679.41 |