Ryazanov Aleksandr

From Samara, Russia

EMA: 15990057

Player page

Common russian riichi rating (CRR)

Rating date Aug. 18, 2025 (latest changes Aug. 9, 2025).

121 place (387.30).

max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.50 * 1) = 15.2

p1 = (569.62 * 3.65 * 0.86 + 719.10 * 3.75 * 1 + 23.81 * 2.60 * 1 + 314.29 * 3.50 * 1 + 0) / (3.65 * 0.86 + 3.75 * 1 + 2.60 * 1 + 3.50 * 1 + 1) = 403.51785234592046

p2 = (719.10 * 3.75 * 1 + 569.62 * 3.65 * 0.86 + 314.29 * 3.50 * 1 + 23.81 * 2.60 * 1) / max_coefficients = 371.08815789473687

score = 403.51785234592046 * 0.5 + 371.08815789473687 * 0.5 = 387.30300512032863

Rating changes

Show

all results
Date Place Points Reason
2025-08-04 117 -> 121 398.15 -> 387.30

Riichi over Volga: 100% -> 86%
2025-08-03 116 -> 117 398.15
2025-07-26 114 -> 116 398.15
2025-07-14 115 -> 114 398.15
2025-07-13 112 -> 115 398.15
2025-07-12 116 -> 112 394.54 -> 398.15
2025-07-05 115 -> 116 394.54
2025-07-03 116 -> 115 394.54
2025-06-25 117 -> 116 394.54
2025-06-15 111 -> 117 400.16 -> 394.54

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 314 2025-05-03 49/71 100% 3.50 RR Riichi over The Volga 2025 Samara
2 24 2025-01-26 42/43 100% 2.60 RR Riichi On Ice Samara
3 719 2024-10-13 26/90 100% 3.75 RR Moscow Riichi 2024 Moscow
4 570 2024-08-04 35/80 86% 3.65 RR Riichi over Volga Samara
5 316 2019-02-24 14/20 0% 1.30 CRR Mahjong tournament at the Intellectual Games Festival 2019 Samara
6 727 2017-02-26 4/12 0% 1.10 CRR Mahjong tournament at the Intellectual Games Festival 2017 Samara
7 486 2011-04-23 19/36 0% 0.90 EMA Moscow Riichi 2011 Moscow