Ryabov Aleksandr
From Moscow, Russia
Common russian riichi rating (CRR)
Rating date Jan. 20, 2024 (latest changes Jan. 20, 2024).
15 place (616.98).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.71 + 2.90 * 1) = 13.650060000000002
p1 = (347.83 * 2.80 * 0.86 + 363.64 * 2.10 * 1 + 594.59 * 4.05 * 0.43 + 436.78 * 3.75 * 1 + 831.78 * 4 * 1 + 897.44 * 2.90 * 1) / (2.80 * 0.86 + 2.10 * 1 + 4.05 * 0.43 + 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 = 630.0126153291633
score = 603.9479536246921 * 0.5 + 630.0126153291633 * 0.5 = 616.9802844769276
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2024-01-06 | 18 -> 15 | 603.72 -> 616.98 | |
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% |
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 |