Petrovskaya Ekaterina
From Simferopol, Russia
Common russian riichi rating (CRR)
Rating date Aug. 24, 2025 (latest changes Aug. 22, 2025).
281 place (53.97).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.50 * 1) = 15.2
p1 = (200 * 1.80 * 1 + 86.96 * 1.20 * 1 + 0 + 0 + 0) / (1.80 * 1 + 1.20 * 1 + 1 + 1 + 1) = 77.39166666666667
p2 = (200 * 1.80 * 1 + 86.96 * 1.20 * 1) / max_coefficients = 30.54934210526316
score = 77.39166666666667 * 0.5 + 30.54934210526316 * 0.5 = 53.970504385964915
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2025-08-04 | 281 | 53.82 -> 53.97 | |
2025-08-03 | 276 -> 281 | 53.82 | |
2025-08-02 | 275 -> 276 | 53.82 | |
2025-07-26 | 275 | 53.82 |
Pands in discards: 0% -> 100% |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
---|---|---|---|---|---|---|---|---|---|
1 | 87 |
|
22/24 | 100% | 1.20 | CRR | Pands in discards | Simferopol | |
2 | 200 |
|
13/16 | 100% | 1.80 | CRR | Happy Bamboo 2024 | Simferopol |