Bogatova Anna

From Samara, Russia

Player page

Common russian riichi rating (CRR)

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

108 place (418.50).

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 + 478.26 * 1.60 * 1 + 581.82 * 3 * 1) / (3.65 * 0.43 + 2.60 * 0.86 + 3.50 * 1 + 1.60 * 1 + 3 * 1) = 475.01061562199135

p2 = (785.71 * 2.60 * 0.86 + 581.82 * 3 * 1 + 328.57 * 3.50 * 1 + 478.26 * 1.60 * 1) / max_coefficients = 361.97993311036794

score = 475.01061562199135 * 0.5 + 361.97993311036794 * 0.5 = 418.4952743661796

Rating changes

Show

all results
Date Place Points Reason
2026-02-08 106 -> 108 418.50
2026-02-04 115 -> 106 411.71 -> 418.50

Riichi over Volga: 57% -> 43%
2026-01-26 103 -> 115 426.19 -> 411.71

Riichi On Ice: 100% -> 86%
2026-01-25 148 -> 103 341.15 -> 426.19

Riichi On Ice 2026: 0% -> 100%
2026-01-19 149 -> 148 341.15
2026-01-07 144 -> 149 341.15
2026-01-03 142 -> 144 341.15
2026-01-01 147 -> 142 341.15
2025-12-27 143 -> 147 341.15
2025-12-13 145 -> 143 341.15

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
2 478 2025-11-22 13/24 100% 1.60 CRR San-Biki Cup Saratov
3 329 2025-05-03 48/71 100% 3.50 RR Riichi over The Volga 2025 Samara
4 786 2025-01-26 10/43 86% 2.60 RR Riichi On Ice Samara
5 152 2024-08-04 68/80 43% 3.65 RR Riichi over Volga Samara