Petrushchenko Sergey
From Moscow, Russia
EMA: 15990288
Common russian riichi rating (CRR)
Rating date Feb. 3, 2025 (latest changes Feb. 3, 2025).
20 place (666.54).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85
p1 = (490.20 * 3.05 * 1 + 172.41 * 3.75 * 0.43 + 775.70 * 4 * 0.57 + 871.79 * 2.90 * 0.71 + 607.84 * 3.05 * 1 + 86.96 * 2.10 * 1 + 898.73 * 3.65 * 1 + 778.95 * 3.85 * 1 + 741.57 * 3.75 * 1 + 130.43 * 2.80 * 1 + 709.68 * 3.10 * 1 + 523.81 * 2.60 * 1 + 764.71 * 3.05 * 1) / (3.05 * 1 + 3.75 * 0.43 + 4 * 0.57 + 2.90 * 0.71 + 3.05 * 1 + 2.10 * 1 + 3.65 * 1 + 3.85 * 1 + 3.75 * 1 + 2.80 * 1 + 3.10 * 1 + 2.60 * 1 + 3.05 * 1) = 614.3026572651682
p2 = (898.73 * 3.65 * 1 + 778.95 * 3.85 * 1 + 741.57 * 3.75 * 1 + 764.71 * 3.05 * 1) / max_coefficients = 718.7747634069401
score = 614.3026572651682 * 0.5 + 718.7747634069401 * 0.5 = 666.5387103360542
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2025-02-02 | 21 -> 20 | 655.60 -> 666.54 |
Agari Winter Tournament 2025: 0% -> 100% |
2025-01-26 | 18 -> 21 | 660.52 -> 655.60 |
Autumn Agari tournament: 86% -> 71% Riichi On Ice: 0% -> 100% |
2025-01-07 | 20 -> 18 | 654.12 -> 660.52 |
Moscow Open Riichi Marathon: 0% -> 100% |
2025-01-05 | 21 -> 20 | 654.12 | |
2025-01-03 | 20 -> 21 | 657.40 -> 654.12 |
SPB Riichi Open 2023: 71% -> 57% |
2024-12-18 | 20 | 658.31 -> 657.40 |
Meeting in the billiard room: 14% -> 0% |
2024-12-11 | 22 -> 20 | 654.47 -> 658.31 |
Money can not buy tenpai: 57% -> 43% |
2024-12-01 | 18 -> 22 | 678.39 -> 654.47 |
Riichi never changing: 0% -> 100% |
2024-11-26 | 17 -> 18 | 689.92 -> 678.39 |
Autumn Agari tournament: 100% -> 86% |
2024-11-05 | 17 | 692.65 -> 689.92 |