Bogatova Anna

From Samara, Russia

Player page

Internal rating (RR)

Rating date Jan. 26, 2026 (latest changes Jan. 25, 2026).

105 place (391.38).

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 + 581.82 * 3 * 1 + 0) / (3.65 * 0.57 + 2.60 * 1 + 3.50 * 1 + 3 * 1 + 1) = 431.2553905795442

p2 = (785.71 * 2.60 * 1 + 581.82 * 3 * 1 + 328.57 * 3.50 * 1 + 151.90 * 3.65 * 0.57) / max_coefficients = 351.5123745819398

score = 431.2553905795442 * 0.5 + 351.5123745819398 * 0.5 = 391.383882580742

Rating changes

Show

all results
Date Place Points Reason
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
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

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 10/43 100% 2.60 RR Riichi On Ice Samara
4 152 2024-08-04 68/80 57% 3.65 RR Riichi over Volga Samara