Kopylov Dmitry
From Saint Petersburg, Russia
Internal rating (RR)
Rating date April 26, 2024 (latest changes April 12, 2024).
89 place (219.82).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 3.05 * 1 + 4.20 * 0.57) = 13.19988
p1 = (135.14 * 4.05 * 0.14 + 120 * 4.20 * 0.57 + 205.61 * 4 * 1 + 630.43 * 2.10 * 1 + 0) / (4.05 * 0.14 + 4.20 * 0.57 + 4 * 1 + 2.10 * 1 + 1) = 249.29392650287116
p2 = (630.43 * 2.10 * 1 + 205.61 * 4 * 1 + 120 * 4.20 * 0.57 + 135.14 * 4.05 * 0.14) / max_coefficients = 190.34566980911947
score = 249.29392650287116 * 0.5 + 190.34566980911947 * 0.5 = 219.81979815599533
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-04-12 | 93 -> 89 | 219.68 -> 219.82 |
Moscow Riichi 2022: 29% -> 14% |
| 2024-03-30 | 99 -> 93 | 114.26 -> 219.68 |
Seihoku spring tournament 2024: 0% -> 100% |
| 2024-03-20 | 108 -> 99 | 114.26 | |
| 2024-03-10 | 100 -> 108 | 122.29 -> 114.26 | |
| 2024-03-06 | 99 -> 100 | 122.12 -> 122.29 |
IX Russian Riichi Championship: 71% -> 57% |
| 2024-02-12 | 99 | 122.74 -> 122.12 |
Moscow Riichi 2022: 43% -> 29% |
| 2024-01-06 | 99 | 122.57 -> 122.74 |
IX Russian Riichi Championship: 86% -> 71% |
| 2023-12-19 | 112 -> 99 | 122.57 | |
| 2023-12-12 | 112 | 123.11 -> 122.57 |
Moscow Riichi 2022: 57% -> 43% |
| 2023-11-28 | 122 -> 112 | 123.11 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 630 |
|
18/47 | 100% | 2.10 | RR | Seihoku spring tournament 2024 |
| 2 | 206 |
|
86/108 | 100% | 4.00 | RR | SPB Riichi Open 2023 |
| 3 | 120 |
|
67/76 | 57% | 4.20 | RR | IX Russian Riichi Championship |
| 4 | 135 |
|
97/112 | 14% | 4.05 | RR | Moscow Riichi 2022 |