Ryabov Aleksandr
From Moscow, Russia
Common russian riichi rating (CRR)
Rating date April 20, 2024 (latest changes April 20, 2024).
20 place (602.16).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 3.05 * 1 + 2.90 * 1) = 13.700000000000001
p1 = (347.83 * 2.80 * 0.57 + 594.59 * 4.05 * 0.14 + 436.78 * 3.75 * 1 + 831.78 * 4 * 1 + 363.64 * 2.10 * 1 + 897.44 * 2.90 * 1 + 352.94 * 3.05 * 1) / (2.80 * 0.57 + 4.05 * 0.14 + 3.75 * 1 + 4 * 1 + 2.10 * 1 + 2.90 * 1 + 3.05 * 1) = 573.363483884927
p2 = (831.78 * 4 * 1 + 897.44 * 2.90 * 1 + 436.78 * 3.75 * 1 + 352.94 * 3.05 * 1) / max_coefficients = 630.9532846715327
score = 573.363483884927 * 0.5 + 630.9532846715327 * 0.5 = 602.1583842782298
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-04-18 | 20 | 599.70 -> 602.16 |
Meeting in the billiard room: 71% -> 57% |
| 2024-04-12 | 20 | 600.10 -> 599.70 |
Moscow Riichi 2022: 29% -> 14% |
| 2024-03-30 | 19 -> 20 | 600.10 | |
| 2024-03-10 | 14 -> 19 | 624.57 -> 600.10 |
Agari Spring Tournament 2024: 0% -> 100% |
| 2024-03-06 | 16 -> 14 | 610.54 -> 624.57 | |
| 2024-02-27 | 15 -> 16 | 610.54 | |
| 2024-02-18 | 19 -> 15 | 609.92 -> 610.54 |
Meeting in the billiard room: 86% -> 71% |
| 2024-02-12 | 15 -> 19 | 616.98 -> 609.92 |
Moscow Riichi 2022: 43% -> 29% |
| 2024-01-06 | 19 -> 15 | 603.72 -> 616.98 | |
| 2023-12-19 | 21 -> 19 | 603.72 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 353 |
|
34/52 | 100% | 3.05 | RR | Agari Spring Tournament 2024 |
| 2 | 897 |
|
5/40 | 100% | 2.90 | CRR | Autumn Agari tournament |
| 3 | 364 |
|
15/23 | 100% | 2.10 | CRR | Mushroom League |
| 4 | 832 |
|
19/108 | 100% | 4.00 | RR | SPB Riichi Open 2023 |
| 5 | 437 |
|
50/88 | 100% | 3.75 | RR | Money can not buy tenpai |
| 6 | 348 |
|
16/24 | 57% | 2.80 | CRR | Meeting in the billiard room |
| 7 | 595 |
|
46/112 | 14% | 4.05 | RR | Moscow Riichi 2022 |