Petrushchenko Sergey
From Moscow, Russia
EMA: 15990288
Common russian riichi rating (CRR)
Rating date April 26, 2025 (latest changes April 26, 2025).
19 place (682.17).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85
p1 = (172.41 * 3.75 * 0.14 + 775.70 * 4 * 0.43 + 871.79 * 2.90 * 0.57 + 607.84 * 3.05 * 0.86 + 86.96 * 2.10 * 0.86 + 490.20 * 3.05 * 1 + 898.73 * 3.65 * 1 + 778.95 * 3.85 * 1 + 741.57 * 3.75 * 1 + 709.68 * 3.10 * 1 + 523.81 * 2.60 * 1 + 764.71 * 3.05 * 1 + 372.88 * 3.25 * 1 + 677.42 * 2.40 * 1) / (3.75 * 0.14 + 4 * 0.43 + 2.90 * 0.57 + 3.05 * 0.86 + 2.10 * 0.86 + 3.05 * 1 + 3.65 * 1 + 3.85 * 1 + 3.75 * 1 + 3.10 * 1 + 2.60 * 1 + 3.05 * 1 + 3.25 * 1 + 2.40 * 1) = 645.5625665155828
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 = 645.5625665155828 * 0.5 + 718.7747634069401 * 0.5 = 682.1686649612615
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2025-04-25 | 20 -> 19 | 682.17 | |
2025-04-22 | 19 -> 20 | 682.17 | |
2025-04-11 | 22 -> 19 | 678.80 -> 682.17 |
Money can not buy tenpai: 29% -> 14% |
2025-03-30 | 22 | 676.61 -> 678.80 |
Seihoku spring tournament 2024: 100% -> 86% |
2025-03-26 | 22 | 677.89 -> 676.61 |
Autumn Agari tournament: 71% -> 57% |
2025-03-10 | 22 | 677.73 -> 677.89 |
Agari Spring Tournament 2024: 100% -> 86% |
2025-03-03 | 21 -> 22 | 678.74 -> 677.73 |
SPB Riichi Open 2023: 57% -> 43% |
2025-03-02 | 23 -> 21 | 677.48 -> 678.74 |
Riichi Maslenitsa (shrovetide): 0% -> 100% |
2025-02-16 | 20 -> 23 | 669.79 -> 677.48 |
White Wolf Cup: 0% -> 100% |
2025-02-11 | 20 | 666.54 -> 669.79 |
Money can not buy tenpai: 43% -> 29% |