Kopylov Dmitry
From Saint Petersburg, Russia
Internal rating (RR)
Rating date Feb. 19, 2023 (latest changes Feb. 19, 2023).
97 place (83.70).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 1 + 3.45 * 0.71) = 14.214335
p1 = (135.14 * 4.05 * 1 + 120 * 4.20 * 1 + 0 + 0 + 0) / (4.05 * 1 + 4.20 * 1 + 1 + 1 + 1) = 93.44888888888889
p2 = (135.14 * 4.05 * 1 + 120 * 4.20 * 1) / max_coefficients = 73.96054757398078
score = 93.44888888888889 * 0.5 + 73.96054757398078 * 0.5 = 83.70471823143484
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-02-19 | 97 | 83.21 -> 83.70 | |
| 2023-01-28 | 97 | 82.47 -> 83.21 | |
| 2022-12-19 | 97 | 82.12 -> 82.47 | |
| 2022-11-28 | 98 -> 97 | 81.31 -> 82.12 | |
| 2022-11-06 | 98 | 81.31 |
IX Russian Riichi Championship: 0% -> 100% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 120 |
|
67/76 | 100% | 4.20 | RR | IX Russian Riichi Championship |
| 2 | 135 |
|
97/112 | 100% | 4.05 | RR | Moscow Riichi 2022 |