Ryazanov Aleksandr

From Samara, Russia

EMA: 15990057

Player page

Internal rating (RR)

Rating date Sept. 5, 2025 (latest changes Sept. 3, 2025).

107 place (392.32).

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

p1 = (569.62 * 3.65 * 0.86 + 719.10 * 3.75 * 1 + 23.81 * 2.60 * 1 + 314.29 * 3.50 * 1 + 0) / (3.65 * 0.86 + 3.75 * 1 + 2.60 * 1 + 3.50 * 1 + 1) = 403.51785234592046

p2 = (719.10 * 3.75 * 1 + 569.62 * 3.65 * 0.86 + 314.29 * 3.50 * 1 + 23.81 * 2.60 * 1) / max_coefficients = 381.11756756756756

score = 403.51785234592046 * 0.5 + 381.11756756756756 * 0.5 = 392.317709956744

Rating changes

Show

all results
Date Place Points Reason
2025-09-03 109 -> 107 392.32
2025-09-01 109 387.30 -> 392.32
2025-08-31 103 -> 109 387.30
2025-08-04 102 -> 103 398.15 -> 387.30

Riichi over Volga: 100% -> 86%
2025-08-03 101 -> 102 398.15
2025-07-30 102 -> 101 398.15
2025-07-14 103 -> 102 398.15
2025-07-13 101 -> 103 398.15
2025-07-12 103 -> 101 394.54 -> 398.15
2025-06-15 98 -> 103 400.16 -> 394.54

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 86% 3.65 RR Riichi over Volga Samara
5 486 2011-04-23 19/36 0% 0.90 EMA Moscow Riichi 2011 Moscow