Bogatova Anna

From Samara, Russia

Player page

Internal rating (RR)

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

156 place (289.73).

max_coefficients = (4.71 * 1 + 3.90 * 1 + 3.40 * 1 + 3.40 * 1) = 15.41

p1 = (785.71 * 2.60 * 0.29 + 328.57 * 3.50 * 0.57 + 581.82 * 3 * 1 + 0 + 0) / (2.60 * 0.29 + 3.50 * 0.57 + 3 * 1 + 1 + 1) = 385.6784179203174

p2 = (581.82 * 3 * 1 + 328.57 * 3.50 * 0.57 + 785.71 * 2.60 * 0.29) / max_coefficients = 193.78325762491886

score = 385.6784179203174 * 0.5 + 193.78325762491886 * 0.5 = 289.7308377726181

Rating changes

Show

all results
Date Place Points Reason
2026-09-26 150 -> 156 308.36 -> 289.73

Riichi On Ice: 43% -> 29%
2026-09-06 145 -> 150 308.36
2026-09-03 146 -> 145 311.50 -> 308.36

Riichi over The Volga 2025: 71% -> 57%
2026-09-02 147 -> 146 311.50
2026-09-01 150 -> 147 311.50
2026-08-31 149 -> 150 311.14 -> 311.50
2026-08-16 150 -> 149 311.14
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%

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 57% 3.50 RR Riichi over The Volga 2025 Samara
3 786 2025-01-26 10/43 29% 2.60 RR Riichi On Ice Samara
4 152 2024-08-04 68/80 0% 3.65 RR Riichi over Volga Samara