Bogatova Anna

From Samara, Russia

Player page

Internal rating (RR)

Rating date Feb. 8, 2026 (latest changes Feb. 8, 2026).

112 place (379.59).

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

p1 = (151.90 * 3.65 * 0.43 + 785.71 * 2.60 * 0.86 + 328.57 * 3.50 * 1 + 581.82 * 3 * 1 + 0) / (3.65 * 0.43 + 2.60 * 0.86 + 3.50 * 1 + 3 * 1 + 1) = 432.4869275692142

p2 = (785.71 * 2.60 * 0.86 + 581.82 * 3 * 1 + 328.57 * 3.50 * 1 + 151.90 * 3.65 * 0.43) / max_coefficients = 326.68963210702344

score = 432.4869275692142 * 0.5 + 326.68963210702344 * 0.5 = 379.5882798381188

Rating changes

Show

all results
Date Place Points Reason
2026-02-08 108 -> 112 379.59
2026-02-04 109 -> 108 376.05 -> 379.59

Riichi over Volga: 57% -> 43%
2026-01-30 110 -> 109 376.05
2026-01-26 105 -> 110 391.38 -> 376.05

Riichi On Ice: 100% -> 86%
2026-01-25 145 -> 105 289.67 -> 391.38

Riichi On Ice 2026: 0% -> 100%
2026-01-14 146 -> 145 289.67
2026-01-12 148 -> 146 289.67
2026-01-07 144 -> 148 289.67
2026-01-01 145 -> 144 289.67
2025-12-07 141 -> 145 289.67

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 582 2026-01-25 24/56 100% 3.00 RR Riichi On Ice 2026 Samara
2 329 2025-05-03 48/71 100% 3.50 RR Riichi over The Volga 2025 Samara
3 786 2025-01-26 10/43 86% 2.60 RR Riichi On Ice Samara
4 152 2024-08-04 68/80 43% 3.65 RR Riichi over Volga Samara