Bogatova Anna

From Samara, Russia

Player page

Internal rating (RR)

Rating date July 27, 2026 (latest changes July 26, 2026).

143 place (329.49).

max_coefficients = (4.71 * 1 + 3.90 * 1 + 4.10 * 0.86 + 3.45 * 1) = 15.574109999999997

p1 = (151.90 * 3.65 * 0.14 + 785.71 * 2.60 * 0.43 + 328.57 * 3.50 * 0.71 + 581.82 * 3 * 1 + 0) / (3.65 * 0.14 + 2.60 * 0.43 + 3.50 * 0.71 + 3 * 1 + 1) = 432.85424831259104

p2 = (581.82 * 3 * 1 + 785.71 * 2.60 * 0.43 + 328.57 * 3.50 * 0.71 + 151.90 * 3.65 * 0.14) / max_coefficients = 226.12528099519014

score = 432.85424831259104 * 0.5 + 226.12528099519014 * 0.5 = 329.4897646538906

Rating changes

Show

all results
Date Place Points Reason
2026-07-26 135 -> 143 346.56 -> 329.49

Riichi On Ice: 57% -> 43%
2026-07-18 132 -> 135 346.56
2026-07-14 133 -> 132 346.56
2026-07-12 131 -> 133 346.56
2026-07-03 131 348.51 -> 346.56

Riichi over The Volga 2025: 86% -> 71%
2026-07-02 132 -> 131 348.51
2026-06-26 133 -> 132 348.51
2026-06-16 135 -> 133 348.51
2026-06-15 135 343.88 -> 348.51
2026-06-14 109 -> 135 354.73 -> 343.88

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 71% 3.50 RR Riichi over The Volga 2025 Samara
3 786 2025-01-26 10/43 43% 2.60 RR Riichi On Ice Samara
4 152 2024-08-04 68/80 14% 3.65 RR Riichi over Volga Samara