Ryabov Aleksandr
From Moscow, Russia
Common russian riichi rating (CRR)
Rating date March 12, 2026 (latest changes March 10, 2026).
67 place (517.64).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (925.23 * 4.60 * 0.29 + 387.10 * 1.80 * 0.29 + 221.05 * 3.85 * 0.43 + 853.93 * 3.75 * 0.57 + 260.87 * 2.80 * 0.71 + 161.29 * 3.10 * 0.71 + 789.47 * 1.50 * 1 + 967.74 * 3 * 1 + 366.67 * 3 * 1) / (4.60 * 0.29 + 1.80 * 0.29 + 3.85 * 0.43 + 3.75 * 0.57 + 2.80 * 0.71 + 3.10 * 0.71 + 1.50 * 1 + 3 * 1 + 3 * 1) = 558.1478924139825
p2 = (967.74 * 3 * 1 + 853.93 * 3.75 * 0.57 + 925.23 * 4.60 * 0.29 + 789.47 * 1.50 * 1) / max_coefficients = 477.13444816053516
score = 558.1478924139825 * 0.5 + 477.13444816053516 * 0.5 = 517.6411702872588
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-03-10 | 63 -> 67 | 543.01 -> 517.64 |
Agari Spring Tournament 2024: 14% -> 0% |
| 2026-03-07 | 62 -> 63 | 543.01 |
Moscow Open Riichi Marathon: 86% -> 71% |
| 2026-03-01 | 64 -> 62 | 536.39 -> 543.01 |
SPB Riichi Open 2024: 57% -> 43% |
| 2026-02-25 | 65 -> 64 | 536.39 | |
| 2026-02-23 | 59 -> 65 | 536.39 | |
| 2026-02-16 | 61 -> 59 | 536.39 | |
| 2026-02-13 | 53 -> 61 | 555.85 -> 536.39 |
Moscow Riichi 2024: 71% -> 57% |
| 2026-02-02 | 54 -> 53 | 555.85 | |
| 2026-02-01 | 55 -> 54 | 551.83 -> 555.85 |
Riichi never changing: 86% -> 71% |
| 2026-01-30 | 56 -> 55 | 551.83 |
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 | 71% | 3.10 | RR | Moscow Open Riichi Marathon | Moscow | |
| 5 | 261 |
|
18/24 | 71% | 2.80 | CRR | Riichi never changing | Moscow | |
| 6 | 854 |
|
14/90 | 57% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 7 | 221 |
|
75/96 | 43% | 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 | 0% | 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 |