Kopylov Dmitry
From Saint Petersburg, Russia
Internal rating (RR)
Rating date May 6, 2024 (latest changes May 6, 2024).
85 place (223.33).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 3.05 * 1 + 2.10 * 1) = 12.9
p1 = (135.14 * 4.05 * 0.14 + 120 * 4.20 * 0.43 + 205.61 * 4 * 1 + 630.43 * 2.10 * 1 + 0) / (4.05 * 0.14 + 4.20 * 0.43 + 4 * 1 + 2.10 * 1 + 1) = 257.4738642231955
p2 = (630.43 * 2.10 * 1 + 205.61 * 4 * 1 + 120 * 4.20 * 0.43 + 135.14 * 4.05 * 0.14) / max_coefficients = 189.19069767441863
score = 257.4738642231955 * 0.5 + 189.19069767441863 * 0.5 = 223.33228094880707
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-05-06 | 88 -> 85 | 219.82 -> 223.33 |
IX Russian Riichi Championship: 57% -> 43% |
| 2024-04-12 | 92 -> 88 | 219.68 -> 219.82 |
Moscow Riichi 2022: 29% -> 14% |
| 2024-03-30 | 98 -> 92 | 114.26 -> 219.68 |
Seihoku spring tournament 2024: 0% -> 100% |
| 2024-03-20 | 107 -> 98 | 114.26 | |
| 2024-03-10 | 99 -> 107 | 122.29 -> 114.26 | |
| 2024-03-06 | 98 -> 99 | 122.12 -> 122.29 |
IX Russian Riichi Championship: 71% -> 57% |
| 2024-02-12 | 98 | 122.74 -> 122.12 |
Moscow Riichi 2022: 43% -> 29% |
| 2024-01-06 | 98 | 122.57 -> 122.74 |
IX Russian Riichi Championship: 86% -> 71% |
| 2023-12-19 | 111 -> 98 | 122.57 | |
| 2023-12-12 | 111 | 123.11 -> 122.57 |
Moscow Riichi 2022: 57% -> 43% |
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 | 43% | 4.20 | RR | IX Russian Riichi Championship |
| 4 | 135 |
|
97/112 | 14% | 4.05 | RR | Moscow Riichi 2022 |