Kopylov Dmitry
From Saint Petersburg, Russia
Internal rating (RR)
Rating date Feb. 18, 2023 (latest changes Feb. 18, 2023).
97 place (83.21).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 1 + 3.10 * 0.86) = 14.40701
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 = 72.97142155103661
score = 93.44888888888889 * 0.5 + 72.97142155103661 * 0.5 = 83.21015521996276
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-02-18 | 97 | 83.21 |
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 |