Kopylov Dmitry
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date Jan. 6, 2023 (latest changes Jan. 6, 2023).
119 place (131.63).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 1 + 3.45 * 0.86) = 14.706995
p1 = (135.14 * 4.05 * 1 + 384.62 * 1.80 * 1 + 120 * 4.20 * 1 + 0 + 0) / (4.05 * 1 + 1.80 * 1 + 4.20 * 1 + 1 + 1) = 144.6979253112033
p2 = (384.62 * 1.80 * 1 + 135.14 * 4.05 * 1 + 120 * 4.20 * 1) / max_coefficients = 118.5565100144523
score = 144.6979253112033 * 0.5 + 118.5565100144523 * 0.5 = 131.6272176628278
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-01-05 | 120 -> 119 | 131.63 | |
| 2023-01-03 | 124 -> 120 | 131.63 | |
| 2022-12-19 | 124 | 131.06 -> 131.63 | |
| 2022-12-18 | 122 -> 124 | 131.06 | |
| 2022-11-28 | 122 | 129.70 -> 131.06 | |
| 2022-11-06 | 103 -> 122 | 113.38 -> 129.70 |
IX Russian Riichi Championship: 0% -> 100% |
| 2022-11-05 | 103 | 113.38 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 120 |
|
67/76 | 100% | 4.20 | RR | IX Russian Riichi Championship |
| 2 | 385 |
|
25/40 | 100% | 1.80 | CRR | Sun tournament |
| 3 | 135 |
|
97/112 | 100% | 4.05 | RR | Moscow Riichi 2022 |