Ryazanov Aleksandr

From Samara, Russia

EMA: 15990057

Player page

Common russian riichi rating (CRR)

Rating date Oct. 13, 2026 (latest changes Oct. 13, 2026).

342 place (77.23).

max_coefficients = (4.71 * 1 + 3.90 * 1 + 3.40 * 1 + 3.40 * 1) = 15.41

p1 = (23.81 * 2.60 * 0.29 + 314.29 * 3.50 * 0.57 + 0 + 0 + 0) / (2.60 * 0.29 + 3.50 * 0.57 + 1 + 1 + 1) = 112.5302992310264

p2 = (314.29 * 3.50 * 0.57 + 23.81 * 2.60 * 0.29) / max_coefficients = 41.93575600259572

score = 112.5302992310264 * 0.5 + 41.93575600259572 * 0.5 = 77.23302761681106

Rating changes

Show

all results
Date Place Points Reason
2026-10-13 327 -> 342 131.18 -> 77.23

Moscow Riichi 2024: 14% -> 0%
2026-10-10 326 -> 327 131.18
2026-09-26 329 -> 326 125.83 -> 131.18

Riichi On Ice: 43% -> 29%
2026-09-15 330 -> 329 125.83
2026-09-06 323 -> 330 125.83
2026-09-03 315 -> 323 136.22 -> 125.83

Riichi over The Volga 2025: 71% -> 57%
2026-09-02 316 -> 315 136.22
2026-09-01 322 -> 316 136.22
2026-08-31 322 136.09 -> 136.22
2026-08-30 319 -> 322 136.09

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 314 2025-05-03 49/71 57% 3.50 RR Riichi over The Volga 2025 Samara
2 24 2025-01-26 42/43 29% 2.60 RR Riichi On Ice Samara
3 719 2024-10-13 26/90 0% 3.75 RR Moscow Riichi 2024 Moscow
4 570 2024-08-04 35/80 0% 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