Bogatova Anna

From Samara, Russia

Player page

Internal rating (RR)

Rating date Aug. 16, 2026 (latest changes Aug. 16, 2026).

147 place (311.14).

max_coefficients = (4.71 * 1 + 3.90 * 1 + 3.45 * 1 + 3.40 * 1) = 15.459999999999999

p1 = (785.71 * 2.60 * 0.43 + 328.57 * 3.50 * 0.71 + 581.82 * 3 * 1 + 0 + 0) / (2.60 * 0.43 + 3.50 * 0.71 + 3 * 1 + 1 + 1) = 399.6176174572606

p2 = (581.82 * 3 * 1 + 785.71 * 2.60 * 0.43 + 328.57 * 3.50 * 0.71) / max_coefficients = 222.6694695989651

score = 399.6176174572606 * 0.5 + 222.6694695989651 * 0.5 = 311.14354352811284

Rating changes

Show

all results
Date Place Points Reason
2026-08-16 150 -> 147 311.14
2026-08-15 151 -> 150 310.33 -> 311.14
2026-08-13 150 -> 151 310.33
2026-08-04 143 -> 150 329.49 -> 310.33

Riichi over Volga: 14% -> 0%
2026-08-03 144 -> 143 329.49
2026-08-02 143 -> 144 329.49
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

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 0% 3.65 RR Riichi over Volga Samara