Ryabov Aleksandr
From Moscow, Russia
Common russian riichi rating (CRR)
Rating date Nov. 20, 2023 (latest changes Nov. 20, 2023).
29 place (528.41).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.86 + 2.80 * 1) = 14.149820000000002
p1 = (594.59 * 4.05 * 0.57 + 436.78 * 3.75 * 1 + 831.78 * 4 * 1 + 347.83 * 2.80 * 1 + 363.64 * 2.10 * 1) / (4.05 * 0.57 + 3.75 * 1 + 4 * 1 + 2.80 * 1 + 2.10 * 1) = 539.8608810244738
p2 = (831.78 * 4 * 1 + 436.78 * 3.75 * 1 + 594.59 * 4.05 * 0.57 + 347.83 * 2.80 * 1) / max_coefficients = 516.9627599503032
score = 539.8608810244738 * 0.5 + 516.9627599503032 * 0.5 = 528.4118204873885
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-11-20 | 30 -> 29 | 528.41 | |
| 2023-11-06 | 30 | 528.41 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 364 |
|
15/23 | 100% | 2.10 | CRR | Mushroom League | Moscow | |
| 2 | 832 |
|
19/108 | 100% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 3 | 437 |
|
50/88 | 100% | 3.75 | RR | Money can not buy tenpai | Perm | |
| 4 | 348 |
|
16/24 | 100% | 2.80 | CRR | Meeting in the billiard room | Moscow | |
| 5 | 595 |
|
46/112 | 57% | 4.05 | RR | Moscow Riichi 2022 | Moscow |