Bogatova Anna

From Samara, Russia

Player page

Common russian riichi rating (CRR)

Rating date April 4, 2026 (latest changes April 4, 2026).

114 place (400.25).

max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95

p1 = (151.90 * 3.65 * 0.29 + 785.71 * 2.60 * 0.71 + 328.57 * 3.50 * 1 + 400 * 1.50 * 1 + 581.82 * 3 * 1) / (3.65 * 0.29 + 2.60 * 0.71 + 3.50 * 1 + 1.50 * 1 + 3 * 1) = 469.0887189294297

p2 = (581.82 * 3 * 1 + 785.71 * 2.60 * 0.71 + 328.57 * 3.50 * 1 + 400 * 1.50 * 1) / max_coefficients = 331.4153846153846

score = 469.0887189294297 * 0.5 + 331.4153846153846 * 0.5 = 400.2520517724072

Rating changes

Show

all results
Date Place Points Reason
2026-04-04 120 -> 114 393.01 -> 400.25

Riichi over Volga: 43% -> 29%
2026-03-30 121 -> 120 393.01
2026-03-26 114 -> 121 407.98 -> 393.01

Riichi On Ice: 86% -> 71%
2026-03-21 113 -> 114 407.98
2026-03-14 110 -> 113 407.98
2026-03-12 114 -> 110 407.98
2026-03-10 115 -> 114 407.98
2026-02-23 109 -> 115 407.98
2026-02-16 111 -> 109 407.98
2026-02-13 113 -> 111 407.98

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 48/71 100% 3.50 RR Riichi over The Volga 2025 Samara
4 786 2025-01-26 10/43 71% 2.60 RR Riichi On Ice Samara
5 152 2024-08-04 68/80 29% 3.65 RR Riichi over Volga Samara