Ryazanov Aleksandr

From Samara, Russia

EMA: 15990057

Player page

Common russian riichi rating (CRR)

Rating date Oct. 4, 2025 (latest changes Oct. 4, 2025).

124 place (379.07).

max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8

p1 = (314.29 * 3.50 * 1 + 569.62 * 3.65 * 0.71 + 719.10 * 3.75 * 1 + 23.81 * 2.60 * 1 + 0) / (3.50 * 1 + 3.65 * 0.71 + 3.75 * 1 + 2.60 * 1 + 1) = 397.08423635088883

p2 = (719.10 * 3.75 * 1 + 569.62 * 3.65 * 0.71 + 314.29 * 3.50 * 1 + 23.81 * 2.60 * 1) / max_coefficients = 361.0567567567567

score = 397.08423635088883 * 0.5 + 361.0567567567567 * 0.5 = 379.07049655382275

Rating changes

Show

all results
Date Place Points Reason
2025-10-04 117 -> 124 392.32 -> 379.07

Riichi over Volga: 86% -> 71%
2025-09-30 118 -> 117 392.32
2025-09-26 119 -> 118 392.32
2025-09-15 120 -> 119 392.32
2025-09-12 122 -> 120 392.32
2025-09-10 124 -> 122 392.32
2025-09-03 125 -> 124 392.32
2025-09-01 126 -> 125 387.30 -> 392.32
2025-08-31 120 -> 126 387.30
2025-08-25 121 -> 120 387.30

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 71% 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