Obukhova Aleksandra

From Samara, Russia

Player page

Common russian riichi rating (CRR)

Rating date Oct. 11, 2025 (latest changes Oct. 9, 2025).

138 place (333.83).

max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8

p1 = (685.71 * 3.50 * 1 + 438.20 * 3.75 * 1 + 0 + 0 + 0) / (3.50 * 1 + 3.75 * 1 + 1 + 1 + 1) = 394.46439024390247

p2 = (685.71 * 3.50 * 1 + 438.20 * 3.75 * 1) / max_coefficients = 273.1932432432432

score = 394.46439024390247 * 0.5 + 273.1932432432432 * 0.5 = 333.8288167435728

Rating changes

Show

all results
Date Place Points Reason
2025-10-04 140 -> 138 333.83
2025-09-19 141 -> 140 333.83
2025-09-15 142 -> 141 333.83
2025-09-12 143 -> 142 333.83
2025-09-03 147 -> 143 333.83
2025-09-01 146 -> 147 330.23 -> 333.83
2025-08-26 147 -> 146 330.23
2025-08-09 148 -> 147 330.23
2025-08-04 148 328.93 -> 330.23
2025-08-03 146 -> 148 328.93

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 686 2025-05-03 23/71 100% 3.50 RR Riichi over The Volga 2025 Samara
2 438 2024-10-13 51/90 100% 3.75 RR Moscow Riichi 2024 Moscow