Ryazanov Aleksandr

From Samara, Russia

EMA: 15990057

Player page

Common russian riichi rating (CRR)

Rating date Jan. 31, 2026 (latest changes Jan. 30, 2026).

156 place (328.37).

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

p1 = (569.62 * 3.65 * 0.57 + 719.10 * 3.75 * 0.71 + 23.81 * 2.60 * 0.86 + 314.29 * 3.50 * 1 + 0) / (3.65 * 0.57 + 3.75 * 0.71 + 2.60 * 0.86 + 3.50 * 1 + 1) = 371.3028145269669

p2 = (719.10 * 3.75 * 0.71 + 569.62 * 3.65 * 0.57 + 314.29 * 3.50 * 1 + 23.81 * 2.60 * 0.86) / max_coefficients = 285.43612040133786

score = 371.3028145269669 * 0.5 + 285.43612040133786 * 0.5 = 328.3694674641524

Rating changes

Show

all results
Date Place Points Reason
2026-01-26 160 -> 156 323.22 -> 328.37

Riichi On Ice: 100% -> 86%
2026-01-25 159 -> 160 323.22
2026-01-12 161 -> 159 323.22
2026-01-07 156 -> 161 323.22
2026-01-03 155 -> 156 323.22
2025-12-27 151 -> 155 323.22
2025-12-13 143 -> 151 343.85 -> 323.22

Moscow Riichi 2024: 86% -> 71%
2025-12-07 137 -> 143 343.85
2025-12-06 135 -> 137 343.85
2025-12-04 130 -> 135 357.69 -> 343.85

Riichi over Volga: 71% -> 57%

Tournaments

# Base rank Date Place Power Coefficient Rating 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 86% 2.60 RR Riichi On Ice Samara
3 719 2024-10-13 26/90 71% 3.75 RR Moscow Riichi 2024 Moscow
4 570 2024-08-04 35/80 57% 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