Kopylov Dmitry
From Saint Petersburg, Russia
Internal rating (RR)
Rating date Sept. 2, 2023 (latest changes Sept. 2, 2023).
116 place (79.18).
how we calculated rating score
max_coefficients = (4.20 * 1 + 3.75 * 1 + 4.05 * 0.71 + 3.50 * 0.57) = 12.842815
p1 = (135.14 * 4.05 * 0.71 + 120 * 4.20 * 1 + 0 + 0 + 0) / (4.05 * 0.71 + 4.20 * 1 + 1 + 1 + 1) = 88.6691307714372
p2 = (120 * 4.20 * 1 + 135.14 * 4.05 * 0.71) / max_coefficients = 69.68332098531359
score = 88.6691307714372 * 0.5 + 69.68332098531359 * 0.5 = 79.17622587837539
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-09-01 | 116 | 79.18 |
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 | 71% | 4.05 | RR | Moscow Riichi 2022 | Moscow |