Petrushchenko Sergey
From Moscow, Russia
EMA: 15990288
Common russian riichi rating (CRR)
Rating date Jan. 4, 2025 (latest changes Jan. 4, 2025).
21 place (654.12).
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 * 0.43 + 775.70 * 4 * 0.57 + 871.79 * 2.90 * 0.86 + 607.84 * 3.05 * 1 + 86.96 * 2.10 * 1 + 490.20 * 3.05 * 1 + 898.73 * 3.65 * 1 + 778.95 * 3.85 * 1 + 741.57 * 3.75 * 1 + 130.43 * 2.80 * 1) / (3.75 * 0.43 + 4 * 0.57 + 2.90 * 0.86 + 3.05 * 1 + 2.10 * 1 + 3.05 * 1 + 3.65 * 1 + 3.85 * 1 + 3.75 * 1 + 2.80 * 1) = 599.8947200755614
p2 = (898.73 * 3.65 * 1 + 778.95 * 3.85 * 1 + 741.57 * 3.75 * 1 + 871.79 * 2.90 * 0.86) / max_coefficients = 708.3375394321766
score = 599.8947200755614 * 0.5 + 708.3375394321766 * 0.5 = 654.116129753869
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 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 | |
| 2024-11-03 | 16 -> 17 | 697.99 -> 692.65 |
SPB Riichi Open 2023: 86% -> 71% |
| 2024-10-18 | 16 | 698.55 -> 697.99 |
Meeting in the billiard room: 29% -> 14% |
| 2024-10-13 | 14 -> 16 | 691.92 -> 698.55 |
Moscow Riichi 2024: 0% -> 100% |
| 2024-10-11 | 17 -> 14 | 687.07 -> 691.92 |
Money can not buy tenpai: 71% -> 57% |