Ryabov Aleksandr

From Moscow, Russia

Player page

Common russian riichi rating (CRR)

Rating date July 10, 2025 (latest changes July 10, 2025).

46 place (587.91).

max_coefficients = (4.10 * 1 + 4.60 * 0.86 + 3.85 * 1 + 3.75 * 1) = 15.64266

p1 = (831.78 * 4 * 0.14 + 363.64 * 2.10 * 0.29 + 897.44 * 2.90 * 0.43 + 352.94 * 3.05 * 0.57 + 925.23 * 4.60 * 0.86 + 387.10 * 1.80 * 0.86 + 853.93 * 3.75 * 1 + 260.87 * 2.80 * 1 + 161.29 * 3.10 * 1 + 789.47 * 1.50 * 1) / (4 * 0.14 + 2.10 * 0.29 + 2.90 * 0.43 + 3.05 * 0.57 + 4.60 * 0.86 + 1.80 * 0.86 + 3.75 * 1 + 2.80 * 1 + 3.10 * 1 + 1.50 * 1) = 590.8870989461697

p2 = (925.23 * 4.60 * 0.86 + 853.93 * 3.75 * 1 + 789.47 * 1.50 * 1 + 897.44 * 2.90 * 0.43) / max_coefficients = 584.926093132498

score = 590.8870989461697 * 0.5 + 584.926093132498 * 0.5 = 587.9065960393339

Rating changes

Show

Date Place Points Reason
2025-07-10 49 -> 46 585.46 -> 587.91

Agari Spring Tournament 2024: 71% -> 57%

2025-07-05 50 -> 49 585.46
2025-07-03 46 -> 50 588.68 -> 585.46

SPB Riichi Open 2023: 29% -> 14%

2025-06-22 46 587.13 -> 588.68

Mushroom League: 43% -> 29%

2025-06-15 43 -> 46 595.79 -> 587.13
2025-06-14 44 -> 43 595.79
2025-06-11 46 -> 44 593.99 -> 595.79

Money can not buy tenpai: 14% -> 0%

2025-05-26 43 -> 46 609.02 -> 593.99

Autumn Agari tournament: 57% -> 43%

2025-05-19 43 607.89 -> 609.02

"Green Dragon" in the Secret Chamber: 100% -> 86%

2025-05-17 46 -> 43 593.31 -> 607.89

HaTiKo: 0% -> 100%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 789 2025-05-17 5/20 100% 1.50 CRR HaTiKo Korolyov
2 161 2025-01-07 27/32 100% 3.10 RR Moscow Open Riichi Marathon Moscow
3 261 2024-12-01 18/24 100% 2.80 CRR Riichi never changing Moscow
4 854 2024-10-13 14/90 100% 3.75 RR Moscow Riichi 2024 Moscow
5 221 2024-09-01 75/96 100% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
6 387 2024-05-19 20/32 86% 1.80 CRR "Green Dragon" in the Secret Chamber Korolyov
7 925 2024-05-12 9/108 86% 4.60 RR X Russian Championship Perm
8 353 2024-03-10 34/52 57% 3.05 RR Agari Spring Tournament 2024 Moscow
9 897 2023-11-26 5/40 43% 2.90 CRR Autumn Agari tournament Moscow
10 364 2023-10-22 15/23 29% 2.10 CRR Mushroom League Moscow
11 832 2023-09-03 19/108 14% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
12 437 2023-06-11 50/88 0% 3.75 RR Money can not buy tenpai Perm
13 348 2022-12-18 16/24 0% 2.80 CRR Meeting in the billiard room Moscow
14 595 2022-06-12 46/112 0% 4.05 RR Moscow Riichi 2022 Moscow