Ryabov Aleksandr
From Moscow, Russia
Common russian riichi rating (CRR)
Rating date Dec. 11, 2023 (latest changes Nov. 28, 2023).
18 place (616.79).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.86 + 2.90 * 1) = 14.249820000000001
p1 = (440 * 2.20 * 1 + 897.44 * 2.90 * 1 + 594.59 * 4.05 * 0.57 + 347.83 * 2.80 * 1 + 436.78 * 3.75 * 1 + 831.78 * 4 * 1) / (2.20 * 1 + 2.90 * 1 + 4.05 * 0.57 + 2.80 * 1 + 3.75 * 1 + 4 * 1) = 605.9556327957262
p2 = (831.78 * 4 * 1 + 897.44 * 2.90 * 1 + 436.78 * 3.75 * 1 + 594.59 * 4.05 * 0.57) / max_coefficients = 627.627577050096
score = 605.9556327957262 * 0.5 + 627.627577050096 * 0.5 = 616.7916049229111
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2023-11-26 | 28 -> 18 | 533.40 -> 616.79 |
Autumn Agari tournament: 0% -> 100% |
2023-11-20 | 30 -> 28 | 533.40 | |
2023-11-06 | 33 -> 30 | 522.89 -> 533.40 | |
2023-11-05 | 32 -> 33 | 522.89 | |
2023-10-22 | 34 -> 32 | 511.77 -> 522.89 |
Mushroom League: 0% -> 100% |
2023-10-12 | 32 -> 34 | 523.15 -> 511.77 |
Moscow Riichi 2022: 71% -> 57% |
2023-09-20 | 35 -> 32 | 523.15 | |
2023-09-06 | 33 -> 35 | 523.15 | |
2023-09-03 | 74 -> 33 | 348.05 -> 523.15 |
SPB Riichi Open 2023: 0% -> 100% |
2023-08-19 | 76 -> 74 | 348.05 |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 897 |
|
5/40 | 100% | 2.90 | CRR | Autumn Agari tournament |
2 | 440 |
|
15/26 | 100% | 2.20 | CRR | Mushroom League |
3 | 832 |
|
19/108 | 100% | 4.00 | RR | SPB Riichi Open 2023 |
4 | 437 |
|
50/88 | 100% | 3.75 | RR | Money can not buy tenpai |
5 | 348 |
|
16/24 | 100% | 2.80 | CRR | Meeting in the billiard room |
6 | 595 |
|
46/112 | 57% | 4.05 | RR | Moscow Riichi 2022 |