Ryabov Aleksandr
From Moscow, Russia
Common russian riichi rating (CRR)
Rating date Jan. 25, 2026 (latest changes Jan. 25, 2026).
55 place (551.83).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (352.94 * 3.05 * 0.14 + 925.23 * 4.60 * 0.29 + 387.10 * 1.80 * 0.29 + 221.05 * 3.85 * 0.57 + 853.93 * 3.75 * 0.71 + 260.87 * 2.80 * 0.86 + 789.47 * 1.50 * 1 + 967.74 * 3 * 1 + 366.67 * 3 * 1) / (3.05 * 0.14 + 4.60 * 0.29 + 1.80 * 0.29 + 3.85 * 0.57 + 3.75 * 0.71 + 2.80 * 0.86 + 1.50 * 1 + 3 * 1 + 3 * 1) = 595.9154407277712
p2 = (967.74 * 3 * 1 + 853.93 * 3.75 * 0.71 + 925.23 * 4.60 * 0.29 + 789.47 * 1.50 * 1) / max_coefficients = 507.7438127090302
score = 595.9154407277712 * 0.5 + 507.7438127090302 * 0.5 = 551.8296267184007
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-01-19 | 55 | 550.28 -> 551.83 |
"Green Dragon" in the Secret Chamber: 43% -> 29% |
| 2026-01-12 | 46 -> 55 | 576.70 -> 550.28 |
X Russian Championship: 43% -> 29% |
| 2026-01-10 | 47 -> 46 | 573.72 -> 576.70 |
Agari Spring Tournament 2024: 29% -> 14% |
| 2026-01-07 | 51 -> 47 | 555.88 -> 573.72 |
Moscow Open Riichi Marathon 2026: 0% -> 100% Moscow Open Riichi Marathon: 100% -> 86% |
| 2026-01-03 | 52 -> 51 | 555.88 | |
| 2026-01-01 | 53 -> 52 | 550.93 -> 555.88 |
SPB Riichi Open 2024: 71% -> 57% |
| 2025-12-13 | 50 -> 53 | 570.34 -> 550.93 |
Moscow Riichi 2024: 86% -> 71% |
| 2025-12-07 | 49 -> 50 | 570.34 | |
| 2025-12-04 | 50 -> 49 | 570.34 | |
| 2025-12-01 | 51 -> 50 | 567.32 -> 570.34 |
Riichi never changing: 100% -> 86% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 367 |
|
20/31 | 100% | 3.00 | RR | Moscow Open Riichi Marathon 2026 | Moscow | |
| 2 | 968 |
|
🥈 | 2/32 | 100% | 3.00 | RR | Final Cup 2025 | Moscow |
| 3 | 789 |
|
5/20 | 100% | 1.50 | CRR | HaTiKo | Korolyov | |
| 4 | 161 |
|
27/32 | 86% | 3.10 | RR | Moscow Open Riichi Marathon | Moscow | |
| 5 | 261 |
|
18/24 | 86% | 2.80 | CRR | Riichi never changing | Moscow | |
| 6 | 854 |
|
14/90 | 71% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 7 | 221 |
|
75/96 | 57% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg | |
| 8 | 387 |
|
20/32 | 29% | 1.80 | CRR | "Green Dragon" in the Secret Chamber | Korolyov | |
| 9 | 925 |
|
9/108 | 29% | 4.60 | RR | X Russian Championship | Perm | |
| 10 | 353 |
|
34/52 | 14% | 3.05 | RR | Agari Spring Tournament 2024 | Moscow | |
| 11 | 897 |
|
5/40 | 0% | 2.90 | CRR | Autumn Agari tournament | Moscow | |
| 12 | 364 |
|
15/23 | 0% | 2.10 | CRR | Mushroom League | Moscow | |
| 13 | 832 |
|
19/108 | 0% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 14 | 437 |
|
50/88 | 0% | 3.75 | RR | Money can not buy tenpai | Perm | |
| 15 | 348 |
|
16/24 | 0% | 2.80 | CRR | Meeting in the billiard room | Moscow | |
| 16 | 595 |
|
46/112 | 0% | 4.05 | RR | Moscow Riichi 2022 | Moscow |