Bogatova Anna

From Samara, Russia

Player page

Internal rating (RR)

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

145 place (289.67).

max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95

p1 = (151.90 * 3.65 * 0.57 + 785.71 * 2.60 * 1 + 328.57 * 3.50 * 1 + 0 + 0) / (3.65 * 0.57 + 2.60 * 1 + 3.50 * 1 + 1 + 1) = 344.5704282806822

p2 = (785.71 * 2.60 * 1 + 328.57 * 3.50 * 1 + 151.90 * 3.65 * 0.57) / max_coefficients = 234.75986622073577

score = 344.5704282806822 * 0.5 + 234.75986622073577 * 0.5 = 289.66514725070897

Rating changes

Show

all results
Date Place Points Reason
2025-12-07 141 -> 145 289.67
2025-12-04 143 -> 141 287.62 -> 289.67

Riichi over Volga: 71% -> 57%
2025-11-30 144 -> 143 287.62
2025-11-14 145 -> 144 287.62
2025-11-12 147 -> 145 287.62
2025-11-10 148 -> 147 287.62
2025-11-04 141 -> 148 293.08 -> 287.62
2025-11-01 144 -> 141 292.64 -> 293.08
2025-10-13 147 -> 144 288.84 -> 292.64
2025-10-04 148 -> 147 287.26 -> 288.84

Riichi over Volga: 86% -> 71%

Tournaments

# Base rank Date Place Power Coefficient Rating 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 57% 3.65 RR Riichi over Volga Samara