Kopylov Dmitry
From Saint Petersburg, Russia
Internal rating (RR)
Rating date May 6, 2023 (latest changes May 6, 2023).
97 place (86.48).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 0.86 + 3.45 * 0.57) = 13.22118
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 = 79.51635179310772
score = 93.44888888888889 * 0.5 + 79.51635179310772 * 0.5 = 86.4826203409983
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-05-05 | 97 | 86.48 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City |
|---|---|---|---|---|---|---|---|---|
| 1 | 120 |
|
67/76 | 100% | 4.20 | RR | IX Russian Riichi Championship | Perm |
| 2 | 135 |
|
97/112 | 100% | 4.05 | RR | Moscow Riichi 2022 | Moscow |