Kopylov Dmitry
From Saint Petersburg, Russia
Internal rating (RR)
Rating date Sept. 3, 2024 (latest changes Sept. 3, 2024).
67 place (447.91).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.65 * 1 + 4 * 0.86) = 15.5284
p1 = (120 * 4.20 * 0.29 + 205.61 * 4 * 0.86 + 630.43 * 2.10 * 1 + 978.95 * 3.85 * 1 + 0) / (4.20 * 0.29 + 4 * 0.86 + 2.10 * 1 + 3.85 * 1 + 1) = 513.1780548852427
p2 = (978.95 * 3.85 * 1 + 630.43 * 2.10 * 1 + 205.61 * 4 * 0.86 + 120 * 4.20 * 0.29) / max_coefficients = 382.63761881455906
score = 513.1780548852427 * 0.5 + 382.63761881455906 * 0.5 = 447.90783684990083
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-09-03 | 71 -> 67 | 437.53 -> 447.91 |
SPB Riichi Open 2023: 100% -> 86% |
| 2024-09-01 | 119 -> 71 | 197.98 -> 437.53 |
SPB Riichi Open 2024: 0% -> 100% |
| 2024-08-11 | 120 -> 119 | 197.19 -> 197.98 | |
| 2024-08-04 | 116 -> 120 | 200.18 -> 197.19 | |
| 2024-07-14 | 111 -> 116 | 200.18 | |
| 2024-07-06 | 113 -> 111 | 198.77 -> 200.18 |
IX Russian Riichi Championship: 43% -> 29% |
| 2024-06-11 | 116 -> 113 | 207.98 -> 198.77 | |
| 2024-06-09 | 107 -> 116 | 207.98 | |
| 2024-05-12 | 85 -> 107 | 223.33 -> 207.98 | |
| 2024-05-06 | 88 -> 85 | 219.82 -> 223.33 |
IX Russian Riichi Championship: 57% -> 43% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 979 |
|
3/96 | 100% | 3.85 | RR | SPB Riichi Open 2024 |
| 2 | 630 |
|
18/47 | 100% | 2.10 | RR | Seihoku spring tournament 2024 |
| 3 | 206 |
|
86/108 | 86% | 4.00 | RR | SPB Riichi Open 2023 |
| 4 | 120 |
|
67/76 | 29% | 4.20 | RR | IX Russian Riichi Championship |
| 5 | 135 |
|
97/112 | 0% | 4.05 | RR | Moscow Riichi 2022 |