Bogatova Anna

From Samara, Russia

Player page

Common russian riichi rating (CRR)

Rating date Nov. 7, 2026 (latest changes Nov. 7, 2026).

178 place (335.73).

max_coefficients = (4.71 * 1 + 3.40 * 1 + 3.40 * 1 + 3.40 * 1) = 14.91

p1 = (785.71 * 2.60 * 0.29 + 328.57 * 3.50 * 0.43 + 400 * 1.50 * 1 + 581.82 * 3 * 1 + 0) / (2.60 * 0.29 + 3.50 * 0.43 + 1.50 * 1 + 3 * 1 + 1) = 441.94954874905073

p2 = (581.82 * 3 * 1 + 400 * 1.50 * 1 + 785.71 * 2.60 * 0.29 + 328.57 * 3.50 * 0.43) / max_coefficients = 229.5090543259557

score = 441.94954874905073 * 0.5 + 229.5090543259557 * 0.5 = 335.7293015375032

Rating changes

Show

all results
Date Place Points Reason
2026-11-07 179 -> 178 335.73
2026-11-04 181 -> 179 332.01 -> 335.73
2026-11-03 179 -> 181 333.90 -> 332.01

Riichi over The Volga 2025: 57% -> 43%
2026-11-01 178 -> 179 333.90
2026-10-31 175 -> 178 333.90
2026-10-27 174 -> 175 333.90
2026-10-26 175 -> 174 333.90
2026-10-24 173 -> 175 333.90
2026-10-17 172 -> 173 333.90
2026-10-16 173 -> 172 333.90

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
2 400 2025-11-22 13/21 100% 1.50 CRR San-Biki Cup Saratov
3 329 2025-05-03 48/71 43% 3.50 RR Riichi over The Volga 2025 Samara
4 786 2025-01-26 10/43 29% 2.60 RR Riichi On Ice Samara
5 152 2024-08-04 68/80 0% 3.65 RR Riichi over Volga Samara