Ryabov Aleksandr

From Moscow, Russia

Player page

Common russian riichi rating (CRR)

Rating date May 3, 2025 (latest changes May 3, 2025).

44 place (602.73).

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

p1 = (363.64 * 2.10 * 0.43 + 352.94 * 3.05 * 0.86 + 853.93 * 3.75 * 1 + 436.78 * 3.75 * 0.14 + 831.78 * 4 * 0.29 + 897.44 * 2.90 * 0.57 + 925.23 * 4.60 * 1 + 387.10 * 1.80 * 1 + 260.87 * 2.80 * 1 + 161.29 * 3.10 * 1) / (2.10 * 0.43 + 3.05 * 0.86 + 3.75 * 1 + 3.75 * 0.14 + 4 * 0.29 + 2.90 * 0.57 + 4.60 * 1 + 1.80 * 1 + 2.80 * 1 + 3.10 * 1) = 581.1003954157106

p2 = (925.23 * 4.60 * 1 + 853.93 * 3.75 * 1 + 897.44 * 2.90 * 0.57 + 831.78 * 4 * 0.29) / max_coefficients = 624.3520504731861

score = 581.1003954157106 * 0.5 + 624.3520504731861 * 0.5 = 602.7262229444484

Rating changes

Show

all results
Date Place Points Reason
2025-05-03 31 -> 44 620.78 -> 602.73

SPB Riichi Open 2023: 43% -> 29%
2025-04-25 32 -> 31 620.78
2025-04-22 33 -> 32 619.37 -> 620.78

Mushroom League: 57% -> 43%
2025-04-11 33 617.74 -> 619.37

Money can not buy tenpai: 29% -> 14%
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

Tournaments

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