Ryabov Aleksandr

From Moscow, Russia

Player page

Common russian riichi rating (CRR)

Rating date Nov. 4, 2025 (latest changes Nov. 4, 2025).

78 place (499.52).

max_coefficients = (4.10 * 1 + 3.50 * 1 + 3.45 * 1 + 3.25 * 1) = 14.3

p1 = (897.44 * 2.90 * 0.14 + 352.94 * 3.05 * 0.43 + 925.23 * 4.60 * 0.57 + 387.10 * 1.80 * 0.57 + 221.05 * 3.85 * 0.71 + 853.93 * 3.75 * 0.86 + 260.87 * 2.80 * 1 + 161.29 * 3.10 * 1 + 789.47 * 1.50 * 1) / (2.90 * 0.14 + 3.05 * 0.43 + 4.60 * 0.57 + 1.80 * 0.57 + 3.85 * 0.71 + 3.75 * 0.86 + 2.80 * 1 + 3.10 * 1 + 1.50 * 1) = 503.15641543036827

p2 = (853.93 * 3.75 * 0.86 + 925.23 * 4.60 * 0.57 + 789.47 * 1.50 * 1 + 260.87 * 2.80 * 1) / max_coefficients = 495.8888111888112

score = 503.15641543036827 * 0.5 + 495.8888111888112 * 0.5 = 499.5226133095897

Rating changes

Show

all results
Date Place Points Reason
2025-11-04 77 -> 78 499.52
2025-11-01 78 -> 77 494.64 -> 499.52

SPB Riichi Open 2024: 86% -> 71%
2025-10-27 79 -> 78 494.64
2025-10-22 70 -> 79 524.82 -> 494.64

Mushroom League: 14% -> 0%
2025-10-13 67 -> 70 537.46 -> 524.82

Moscow Riichi 2024: 100% -> 86%
2025-10-04 68 -> 67 537.46
2025-09-26 67 -> 68 541.85 -> 537.46

Autumn Agari tournament: 29% -> 14%
2025-09-19 67 540.50 -> 541.85

"Green Dragon" in the Secret Chamber: 71% -> 57%
2025-09-12 59 -> 67 567.41 -> 540.50

X Russian Championship: 71% -> 57%
2025-09-10 59 564.74 -> 567.41

Agari Spring Tournament 2024: 57% -> 43%

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 86% 3.75 RR Moscow Riichi 2024 Moscow
5 221 2024-09-01 75/96 71% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
6 387 2024-05-19 20/32 57% 1.80 CRR "Green Dragon" in the Secret Chamber Korolyov
7 925 2024-05-12 9/108 57% 4.60 RR X Russian Championship Perm
8 353 2024-03-10 34/52 43% 3.05 RR Agari Spring Tournament 2024 Moscow
9 897 2023-11-26 5/40 14% 2.90 CRR Autumn Agari tournament Moscow
10 364 2023-10-22 15/23 0% 2.10 CRR Mushroom League Moscow
11 832 2023-09-03 19/108 0% 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