Bogatova Anna

From Samara, Russia

Player page

Internal rating (RR)

Rating date Oct. 10, 2025 (latest changes Oct. 9, 2025).

147 place (288.84).

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

p1 = (151.90 * 3.65 * 0.71 + 785.71 * 2.60 * 1 + 328.57 * 3.50 * 1 + 0 + 0) / (3.65 * 0.71 + 2.60 * 1 + 3.50 * 1 + 1 + 1) = 335.1848920282109

p2 = (785.71 * 2.60 * 1 + 328.57 * 3.50 * 1 + 151.90 * 3.65 * 0.71) / max_coefficients = 242.4925675675675

score = 335.1848920282109 * 0.5 + 242.4925675675675 * 0.5 = 288.8387297978892

Rating changes

Show

all results
Date Place Points Reason
2025-10-04 148 -> 147 287.26 -> 288.84

Riichi over Volga: 86% -> 71%
2025-09-30 149 -> 148 287.26
2025-09-03 150 -> 149 287.26
2025-09-01 150 284.00 -> 287.26
2025-08-31 145 -> 150 284.00
2025-08-09 146 -> 145 284.00
2025-08-04 146 281.52 -> 284.00

Riichi over Volga: 100% -> 86%
2025-08-03 139 -> 146 281.52
2025-07-14 140 -> 139 281.52
2025-07-13 137 -> 140 281.52

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 329 2025-05-03 48/71 100% 3.50 RR Riichi over The Volga 2025 Samara
2 786 2025-01-26 10/43 100% 2.60 RR Riichi On Ice Samara
3 152 2024-08-04 68/80 71% 3.65 RR Riichi over Volga Samara