Ryabov Aleksandr
From Moscow, Russia
Common russian riichi rating (CRR)
Rating date Dec. 27, 2023 (latest changes Dec. 27, 2023).
18 place (603.72).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.86 + 2.90 * 1) = 14.249820000000001
p1 = (363.64 * 2.10 * 1 + 594.59 * 4.05 * 0.43 + 347.83 * 2.80 * 0.86 + 436.78 * 3.75 * 1 + 831.78 * 4 * 1 + 897.44 * 2.90 * 1) / (2.10 * 1 + 4.05 * 0.43 + 2.80 * 0.86 + 3.75 * 1 + 4 * 1 + 2.90 * 1) = 603.9479536246921
p2 = (831.78 * 4 * 1 + 897.44 * 2.90 * 1 + 436.78 * 3.75 * 1 + 594.59 * 4.05 * 0.43) / max_coefficients = 603.4960441605577
score = 603.9479536246921 * 0.5 + 603.4960441605577 * 0.5 = 603.7219988926249
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2023-12-19 | 20 -> 18 | 603.72 | |
2023-12-18 | 21 -> 20 | 600.76 -> 603.72 |
Meeting in the billiard room: 100% -> 86% |
2023-12-12 | 17 -> 21 | 612.77 -> 600.76 |
Moscow Riichi 2022: 57% -> 43% |
2023-11-28 | 19 -> 17 | 612.77 | |
2023-11-26 | 29 -> 19 | 528.41 -> 612.77 |
Autumn Agari tournament: 0% -> 100% |
2023-11-20 | 30 -> 29 | 528.41 | |
2023-11-06 | 32 -> 30 | 517.89 -> 528.41 | |
2023-11-05 | 31 -> 32 | 517.89 | |
2023-10-22 | 33 -> 31 | 511.77 -> 517.89 |
Mushroom League: 0% -> 100% |
2023-10-12 | 31 -> 33 | 523.15 -> 511.77 |
Moscow Riichi 2022: 71% -> 57% |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 897 |
|
5/40 | 100% | 2.90 | CRR | Autumn Agari tournament |
2 | 364 |
|
15/23 | 100% | 2.10 | 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 | 86% | 2.80 | CRR | Meeting in the billiard room |
6 | 595 |
|
46/112 | 43% | 4.05 | RR | Moscow Riichi 2022 |