Petrovskaya Ekaterina

From Simferopol, Russia

Player page

Common russian riichi rating (CRR)

Rating date Oct. 27, 2025 (latest changes Oct. 27, 2025).

275 place (50.34).

max_coefficients = (4.10 * 1 + 3.50 * 1 + 3.45 * 1 + 3.85 * 0.86) = 14.349835

p1 = (200 * 1.80 * 0.86 + 86.96 * 1.20 * 1 + 0 + 0 + 0) / (1.80 * 0.86 + 1.20 * 1 + 1 + 1 + 1) = 71.90071707430896

p2 = (200 * 1.80 * 0.86 + 86.96 * 1.20 * 1) / max_coefficients = 28.774546885033867

score = 71.90071707430896 * 0.5 + 28.774546885033867 * 0.5 = 50.337631979671414

Rating changes

Show

all results
Date Place Points Reason
2025-10-27 274 -> 275 54.88 -> 50.34

Happy Bamboo 2024: 100% -> 86%
2025-10-22 275 -> 274 54.88
2025-10-13 275 54.38 -> 54.88
2025-09-30 276 -> 275 54.38
2025-09-03 286 -> 276 54.38
2025-09-01 286 53.97 -> 54.38
2025-08-31 280 -> 286 53.97
2025-08-25 281 -> 280 53.97
2025-08-04 281 53.82 -> 53.97
2025-08-03 276 -> 281 53.82

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 87 2025-07-26 22/24 100% 1.20 CRR Pands in discards Simferopol
2 200 2024-10-27 13/16 86% 1.80 CRR Happy Bamboo 2024 Simferopol