Ryazanov Aleksandr

From Samara, Russia

EMA: 15990057

Player page

Internal rating (RR)

Rating date April 20, 2026 (latest changes April 19, 2026).

170 place (257.44).

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 * 0.43 + 23.81 * 2.60 * 0.71 + 314.29 * 3.50 * 1 + 0) / (3.65 * 0.29 + 3.75 * 0.43 + 2.60 * 0.71 + 3.50 * 1 + 1) = 321.2972682515777

p2 = (719.10 * 3.75 * 0.43 + 314.29 * 3.50 * 1 + 569.62 * 3.65 * 0.29 + 23.81 * 2.60 * 0.71) / max_coefficients = 193.57859531772573

score = 321.2972682515777 * 0.5 + 193.57859531772573 * 0.5 = 257.4379317846517

Rating changes

Show

all results
Date Place Points Reason
2026-04-19 166 -> 170 257.44
2026-04-16 167 -> 166 257.44
2026-04-13 160 -> 167 281.48 -> 257.44

Moscow Riichi 2024: 57% -> 43%
2026-04-11 157 -> 160 281.48
2026-04-05 153 -> 157 281.48
2026-04-04 146 -> 153 297.27 -> 281.48

Riichi over Volga: 43% -> 29%
2026-04-02 147 -> 146 297.27
2026-03-30 148 -> 147 297.27
2026-03-26 150 -> 148 291.67 -> 297.27

Riichi On Ice: 86% -> 71%
2026-03-02 151 -> 150 291.67

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 43% 3.75 RR Moscow Riichi 2024 Moscow
4 570 2024-08-04 35/80 29% 3.65 RR Riichi over Volga Samara
5 486 2011-04-23 19/36 0% 0.90 EMA Moscow Riichi 2011 Moscow