Ryabov Aleksandr
From Moscow, Russia
Common russian riichi rating (CRR)
Rating date Jan. 28, 2023 (latest changes Jan. 28, 2023).
84 place (287.90).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 1 + 2.80 * 1) = 14.55
p1 = (347.83 * 2.80 * 1 + 594.59 * 4.05 * 1 + 0 + 0 + 0) / (2.80 * 1 + 4.05 * 1 + 1 + 1 + 1) = 343.3522842639594
p2 = (594.59 * 4.05 * 1 + 347.83 * 2.80 * 1) / max_coefficients = 232.44123711340205
score = 343.3522842639594 * 0.5 + 232.44123711340205 * 0.5 = 287.89676068868073
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2023-01-28 | 84 | 286.66 -> 287.90 | |
2023-01-14 | 83 -> 84 | 286.66 | |
2023-01-06 | 85 -> 83 | 286.66 | |
2023-01-03 | 86 -> 85 | 286.66 | |
2022-12-19 | 86 | 285.55 -> 286.66 | |
2022-12-18 | 86 | 285.55 |
Meeting in the billiard room: 0% -> 100% |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 348 |
|
16/24 | 100% | 2.80 | CRR | Meeting in the billiard room |
2 | 595 |
|
46/112 | 100% | 4.05 | RR | Moscow Riichi 2022 |