Bogatova Anna

From Samara, Russia

Player page

Common russian riichi rating (CRR)

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

149 place (368.42).

max_coefficients = (4.71 * 1 + 3.90 * 1 + 4.10 * 0.86 + 3.45 * 1) = 15.574109999999997

p1 = (151.90 * 3.65 * 0.14 + 785.71 * 2.60 * 0.43 + 328.57 * 3.50 * 0.71 + 400 * 1.50 * 1 + 581.82 * 3 * 1) / (3.65 * 0.14 + 2.60 * 0.43 + 3.50 * 0.71 + 1.50 * 1 + 3 * 1) = 477.2698455707766

p2 = (581.82 * 3 * 1 + 785.71 * 2.60 * 0.43 + 328.57 * 3.50 * 0.71 + 400 * 1.50 * 1) / max_coefficients = 259.5634678321908

score = 477.2698455707766 * 0.5 + 259.5634678321908 * 0.5 = 368.4166567014837

Rating changes

Show

all results
Date Place Points Reason
2026-07-26 140 -> 149 384.14 -> 368.42

Riichi On Ice: 57% -> 43%
2026-07-23 141 -> 140 384.14
2026-07-18 140 -> 141 384.14
2026-07-14 141 -> 140 384.14
2026-07-13 142 -> 141 384.14
2026-07-12 140 -> 142 384.14
2026-07-03 137 -> 140 385.17 -> 384.14

Riichi over The Volga 2025: 86% -> 71%
2026-07-02 139 -> 137 385.17
2026-06-27 140 -> 139 385.17
2026-06-15 140 379.93 -> 385.17

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 71% 3.50 RR Riichi over The Volga 2025 Samara
4 786 2025-01-26 10/43 43% 2.60 RR Riichi On Ice Samara
5 152 2024-08-04 68/80 14% 3.65 RR Riichi over Volga Samara