Ryabov Aleksandr
From Moscow, Russia
Internal rating (RR)
Rating date Sept. 6, 2024 (latest changes Sept. 6, 2024).
32 place (591.00).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.65 * 1 + 4 * 0.86) = 15.5284
p1 = (436.78 * 3.75 * 0.71 + 831.78 * 4 * 0.86 + 925.23 * 4.60 * 1 + 352.94 * 3.05 * 1 + 221.05 * 3.85 * 1) / (3.75 * 0.71 + 4 * 0.86 + 4.60 * 1 + 3.05 * 1 + 3.85 * 1) = 579.6106951628682
p2 = (925.23 * 4.60 * 1 + 831.78 * 4 * 0.86 + 436.78 * 3.75 * 0.71 + 352.94 * 3.05 * 1) / max_coefficients = 602.3911027536642
score = 579.6106951628682 * 0.5 + 602.3911027536642 * 0.5 = 591.0008989582661
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-09-03 | 29 -> 32 | 599.04 -> 591.00 |
SPB Riichi Open 2023: 100% -> 86% |
| 2024-09-01 | 19 -> 29 | 641.86 -> 599.04 |
SPB Riichi Open 2024: 0% -> 100% |
| 2024-08-11 | 19 | 642.56 -> 641.86 |
Money can not buy tenpai: 86% -> 71% |
| 2024-08-04 | 13 -> 19 | 655.69 -> 642.56 | |
| 2024-07-14 | 11 -> 13 | 655.69 | |
| 2024-06-11 | 12 -> 11 | 667.33 -> 655.69 |
Money can not buy tenpai: 100% -> 86% |
| 2024-06-09 | 9 -> 12 | 667.33 | |
| 2024-05-12 | 25 -> 9 | 505.43 -> 667.33 |
X Russian Championship: 0% -> 100% |
| 2024-05-06 | 28 -> 25 | 499.81 -> 505.43 | |
| 2024-04-12 | 23 -> 28 | 514.59 -> 499.81 |
Moscow Riichi 2022: 29% -> 14% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 221 |
|
75/96 | 100% | 3.85 | RR | SPB Riichi Open 2024 |
| 2 | 925 |
|
9/108 | 100% | 4.60 | RR | X Russian Championship |
| 3 | 353 |
|
34/52 | 100% | 3.05 | RR | Agari Spring Tournament 2024 |
| 4 | 832 |
|
19/108 | 86% | 4.00 | RR | SPB Riichi Open 2023 |
| 5 | 437 |
|
50/88 | 71% | 3.75 | RR | Money can not buy tenpai |
| 6 | 595 |
|
46/112 | 0% | 4.05 | RR | Moscow Riichi 2022 |