Ryabov Aleksandr
From Moscow, Russia
Common russian riichi rating (CRR)
Rating date Sept. 6, 2024 (latest changes Sept. 6, 2024).
28 place (638.87).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.65 * 1 + 4 * 0.86) = 15.5284
p1 = (363.64 * 2.10 * 1 + 347.83 * 2.80 * 0.29 + 387.10 * 1.80 * 1 + 436.78 * 3.75 * 0.71 + 831.78 * 4 * 0.86 + 897.44 * 2.90 * 1 + 352.94 * 3.05 * 1 + 925.23 * 4.60 * 1 + 221.05 * 3.85 * 1) / (2.10 * 1 + 2.80 * 0.29 + 1.80 * 1 + 3.75 * 0.71 + 4 * 0.86 + 2.90 * 1 + 3.05 * 1 + 4.60 * 1 + 3.85 * 1) = 577.0797261155984
p2 = (925.23 * 4.60 * 1 + 831.78 * 4 * 0.86 + 897.44 * 2.90 * 1 + 436.78 * 3.75 * 0.71) / max_coefficients = 700.6684526416115
score = 577.0797261155984 * 0.5 + 700.6684526416115 * 0.5 = 638.8740893786049
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2024-09-06 | 29 -> 28 | 638.87 | |
2024-09-03 | 25 -> 29 | 644.03 -> 638.87 |
SPB Riichi Open 2023: 100% -> 86% |
2024-09-01 | 14 -> 25 | 694.21 -> 644.03 |
SPB Riichi Open 2024: 0% -> 100% |
2024-08-18 | 14 | 691.54 -> 694.21 |
Meeting in the billiard room: 43% -> 29% |
2024-08-11 | 13 -> 14 | 692.77 -> 691.54 |
Money can not buy tenpai: 86% -> 71% |
2024-08-04 | 10 -> 13 | 707.90 -> 692.77 | |
2024-07-14 | 8 -> 10 | 707.90 | |
2024-06-18 | 8 | 705.42 -> 707.90 |
Meeting in the billiard room: 57% -> 43% |
2024-06-11 | 11 -> 8 | 696.89 -> 705.42 |
Money can not buy tenpai: 100% -> 86% |
2024-06-09 | 10 -> 11 | 696.89 |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 221 |
|
75/96 | 100% | 3.85 | RR | SPB Riichi Open 2024 |
2 | 387 |
|
20/32 | 100% | 1.80 | CRR | "Green Dragon" in the Secret Chamber |
3 | 925 |
|
9/108 | 100% | 4.60 | RR | X Russian Championship |
4 | 353 |
|
34/52 | 100% | 3.05 | RR | Agari Spring Tournament 2024 |
5 | 897 |
|
5/40 | 100% | 2.90 | CRR | Autumn Agari tournament |
6 | 364 |
|
15/23 | 100% | 2.10 | CRR | Mushroom League |
7 | 832 |
|
19/108 | 86% | 4.00 | RR | SPB Riichi Open 2023 |
8 | 437 |
|
50/88 | 71% | 3.75 | RR | Money can not buy tenpai |
9 | 348 |
|
16/24 | 29% | 2.80 | CRR | Meeting in the billiard room |
10 | 595 |
|
46/112 | 0% | 4.05 | RR | Moscow Riichi 2022 |