Medvedev Sergei
From Moscow, Russia
Common russian riichi rating (CRR)
Rating date May 28, 2023 (latest changes May 28, 2023).
76 place (319.15).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4.05 * 1 + 2.80 * 1 + 3.50 * 0.71) = 13.55005
p1 = (360.36 * 4.05 * 1 + 586.67 * 4.20 * 1 + 0 + 0 + 0) / (4.05 * 1 + 4.20 * 1 + 1 + 1 + 1) = 348.752
p2 = (586.67 * 4.20 * 1 + 360.36 * 4.05 * 1) / max_coefficients = 289.55317508053474
score = 348.752 * 0.5 + 289.55317508053474 * 0.5 = 319.1525875402674
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-05-28 | 78 -> 76 | 319.15 | |
| 2023-05-20 | 78 | 314.00 -> 319.15 | |
| 2023-05-06 | 79 -> 78 | 314.00 | |
| 2023-05-05 | 80 -> 79 | 314.00 | |
| 2023-05-03 | 79 -> 80 | 314.00 | |
| 2023-05-01 | 78 -> 79 | 314.00 | |
| 2023-04-19 | 79 -> 78 | 314.00 | |
| 2023-03-28 | 80 -> 79 | 314.00 | |
| 2023-03-20 | 81 -> 80 | 309.20 -> 314.00 | |
| 2023-03-06 | 82 -> 81 | 309.20 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 587 |
|
32/76 | 100% | 4.20 | RR | IX Russian Riichi Championship |
| 2 | 360 |
|
72/112 | 100% | 4.05 | RR | Moscow Riichi 2022 |