Bogatova Anna

From Samara, Russia

Player page

Common russian riichi rating (CRR)

Rating date July 6, 2026 (latest changes July 4, 2026).

140 place (384.14).

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 * 0.57 + 328.57 * 3.50 * 0.71 + 400 * 1.50 * 1 + 581.82 * 3 * 1) / (3.65 * 0.14 + 2.60 * 0.57 + 3.50 * 0.71 + 1.50 * 1 + 3 * 1) = 489.9839296568607

p2 = (581.82 * 3 * 1 + 785.71 * 2.60 * 0.57 + 328.57 * 3.50 * 0.71 + 400 * 1.50 * 1) / max_coefficients = 278.29455423134937

score = 489.9839296568607 * 0.5 + 278.29455423134937 * 0.5 = 384.13924194410504

Rating changes

Show

all results
Date Place Points Reason
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
2026-06-14 122 -> 140 392.21 -> 379.93
2026-06-04 126 -> 122 383.65 -> 392.21

Riichi over Volga: 29% -> 14%
2026-06-02 127 -> 126 383.65
2026-05-29 128 -> 127 383.65
2026-05-26 120 -> 128 399.21 -> 383.65

Riichi On Ice: 71% -> 57%
2026-05-23 121 -> 120 399.21

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 57% 2.60 RR Riichi On Ice Samara
5 152 2024-08-04 68/80 14% 3.65 RR Riichi over Volga Samara