Ryabov Aleksandr
From Moscow, Russia
Common russian riichi rating (CRR)
Rating date Dec. 11, 2024 (latest changes Dec. 11, 2024).
13 place (700.00).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85
p1 = (347.83 * 2.80 * 0.14 + 436.78 * 3.75 * 0.43 + 831.78 * 4 * 0.71 + 363.64 * 2.10 * 0.86 + 897.44 * 2.90 * 0.86 + 352.94 * 3.05 * 1 + 925.23 * 4.60 * 1 + 387.10 * 1.80 * 1 + 853.93 * 3.75 * 1 + 260.87 * 2.80 * 1) / (2.80 * 0.14 + 3.75 * 0.43 + 4 * 0.71 + 2.10 * 0.86 + 2.90 * 0.86 + 3.05 * 1 + 4.60 * 1 + 1.80 * 1 + 3.75 * 1 + 2.80 * 1) = 638.7616416176974
p2 = (925.23 * 4.60 * 1 + 853.93 * 3.75 * 1 + 831.78 * 4 * 0.71 + 897.44 * 2.90 * 0.86) / max_coefficients = 761.2321766561514
score = 638.7616416176974 * 0.5 + 761.2321766561514 * 0.5 = 699.9969091369244
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-12-11 | 13 | 697.89 -> 700.00 |
Money can not buy tenpai: 57% -> 43% |
| 2024-12-01 | 12 -> 13 | 720.75 -> 697.89 |
Riichi never changing: 0% -> 100% |
| 2024-11-26 | 10 -> 12 | 734.41 -> 720.75 |
Autumn Agari tournament: 100% -> 86% |
| 2024-11-03 | 10 | 751.17 -> 734.41 |
SPB Riichi Open 2023: 86% -> 71% |
| 2024-10-22 | 10 | 749.16 -> 751.17 |
Mushroom League: 100% -> 86% |
| 2024-10-18 | 10 | 746.42 -> 749.16 |
Meeting in the billiard room: 29% -> 14% |
| 2024-10-13 | 26 -> 10 | 637.39 -> 746.42 |
Moscow Riichi 2024: 0% -> 100% |
| 2024-10-11 | 28 -> 26 | 638.87 -> 637.39 |
Money can not buy tenpai: 71% -> 57% |
| 2024-09-06 | 29 -> 28 | 638.87 | |
| 2024-09-03 | 25 -> 29 | 644.03 -> 638.87 |
SPB Riichi Open 2023: 100% -> 86% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 261 |
|
18/24 | 100% | 2.80 | CRR | Riichi never changing | Moscow | |
| 2 | 854 |
|
14/90 | 100% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 3 | 221 |
|
75/96 | 100% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg | |
| 4 | 387 |
|
20/32 | 100% | 1.80 | CRR | "Green Dragon" in the Secret Chamber | Korolyov | |
| 5 | 925 |
|
9/108 | 100% | 4.60 | RR | X Russian Championship | Perm | |
| 6 | 353 |
|
34/52 | 100% | 3.05 | RR | Agari Spring Tournament 2024 | Moscow | |
| 7 | 897 |
|
5/40 | 86% | 2.90 | CRR | Autumn Agari tournament | Moscow | |
| 8 | 364 |
|
15/23 | 86% | 2.10 | CRR | Mushroom League | Moscow | |
| 9 | 832 |
|
19/108 | 71% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 10 | 437 |
|
50/88 | 43% | 3.75 | RR | Money can not buy tenpai | Perm | |
| 11 | 348 |
|
16/24 | 14% | 2.80 | CRR | Meeting in the billiard room | Moscow | |
| 12 | 595 |
|
46/112 | 0% | 4.05 | RR | Moscow Riichi 2022 | Moscow |