Ryazanov Aleksandr

From Samara, Russia

EMA: 15990057

Player page

Common russian riichi rating (CRR)

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

186 place (281.48).

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

p1 = (569.62 * 3.65 * 0.29 + 719.10 * 3.75 * 0.57 + 23.81 * 2.60 * 0.71 + 314.29 * 3.50 * 1 + 0) / (3.65 * 0.29 + 3.75 * 0.57 + 2.60 * 0.71 + 3.50 * 1 + 1) = 343.61951788454775

p2 = (719.10 * 3.75 * 0.57 + 314.29 * 3.50 * 1 + 569.62 * 3.65 * 0.29 + 23.81 * 2.60 * 0.71) / max_coefficients = 219.33578595317724

score = 343.61951788454775 * 0.5 + 219.33578595317724 * 0.5 = 281.4776519188625

Rating changes

Show

all results
Date Place Points Reason
2026-04-04 178 -> 186 297.27 -> 281.48

Riichi over Volga: 43% -> 29%
2026-04-02 179 -> 178 297.27
2026-03-30 181 -> 179 297.27
2026-03-29 182 -> 181 297.27
2026-03-26 183 -> 182 291.67 -> 297.27

Riichi On Ice: 86% -> 71%
2026-03-23 184 -> 183 291.67
2026-03-21 181 -> 184 291.67
2026-03-14 175 -> 181 291.67
2026-03-12 177 -> 175 291.67
2026-03-07 176 -> 177 291.67

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 71% 2.60 RR Riichi On Ice Samara
3 719 2024-10-13 26/90 57% 3.75 RR Moscow Riichi 2024 Moscow
4 570 2024-08-04 35/80 29% 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