Ryabov Aleksandr

From Moscow, Russia

Player page

Common russian riichi rating (CRR)

Rating date March 31, 2025 (latest changes March 30, 2025).

33 place (617.74).

max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85

p1 = (436.78 * 3.75 * 0.29 + 831.78 * 4 * 0.43 + 363.64 * 2.10 * 0.57 + 897.44 * 2.90 * 0.57 + 352.94 * 3.05 * 0.86 + 925.23 * 4.60 * 1 + 387.10 * 1.80 * 1 + 853.93 * 3.75 * 1 + 260.87 * 2.80 * 1 + 161.29 * 3.10 * 1) / (3.75 * 0.29 + 4 * 0.43 + 2.10 * 0.57 + 2.90 * 0.57 + 3.05 * 0.86 + 4.60 * 1 + 1.80 * 1 + 3.75 * 1 + 2.80 * 1 + 3.10 * 1) = 581.1334463052306

p2 = (925.23 * 4.60 * 1 + 853.93 * 3.75 * 1 + 897.44 * 2.90 * 0.57 + 831.78 * 4 * 0.43) / max_coefficients = 654.3488958990537

score = 581.1334463052306 * 0.5 + 654.3488958990537 * 0.5 = 617.7411711021421

Rating changes

Show

all results
Date Place Points Reason
2025-03-26 28 -> 33 632.12 -> 617.74

Autumn Agari tournament: 71% -> 57%
2025-03-10 28 630.10 -> 632.12

Agari Spring Tournament 2024: 100% -> 86%
2025-03-03 27 -> 28 647.86 -> 630.10

SPB Riichi Open 2023: 57% -> 43%
2025-02-25 26 -> 27 647.86
2025-02-22 26 646.56 -> 647.86

Mushroom League: 71% -> 57%
2025-02-16 23 -> 26 646.56
2025-02-11 25 -> 23 645.07 -> 646.56

Money can not buy tenpai: 43% -> 29%
2025-01-26 19 -> 25 659.21 -> 645.07

Autumn Agari tournament: 86% -> 71%
2025-01-07 15 -> 19 686.85 -> 659.21

Moscow Open Riichi Marathon: 0% -> 100%
2025-01-03 13 -> 15 704.06 -> 686.85

SPB Riichi Open 2023: 71% -> 57%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 161 2025-01-07 27/32 100% 3.10 RR Moscow Open Riichi Marathon
2 261 2024-12-01 18/24 100% 2.80 CRR Riichi never changing
3 854 2024-10-13 14/90 100% 3.75 RR Moscow Riichi 2024
4 221 2024-09-01 75/96 100% 3.85 RR SPB Riichi Open 2024
5 387 2024-05-19 20/32 100% 1.80 CRR "Green Dragon" in the Secret Chamber
6 925 2024-05-12 9/108 100% 4.60 RR X Russian Championship
7 353 2024-03-10 34/52 86% 3.05 RR Agari Spring Tournament 2024
8 897 2023-11-26 5/40 57% 2.90 CRR Autumn Agari tournament
9 364 2023-10-22 15/23 57% 2.10 CRR Mushroom League
10 832 2023-09-03 19/108 43% 4.00 RR SPB Riichi Open 2023
11 437 2023-06-11 50/88 29% 3.75 RR Money can not buy tenpai
12 348 2022-12-18 16/24 0% 2.80 CRR Meeting in the billiard room
13 595 2022-06-12 46/112 0% 4.05 RR Moscow Riichi 2022