Kopylov Dmitry
From Saint Petersburg, Russia
Internal rating (RR)
Rating date Nov. 6, 2023 (latest changes Nov. 6, 2023).
121 place (123.11).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.86 + 4.05 * 0.57) = 13.663990000000002
p1 = (135.14 * 4.05 * 0.57 + 120 * 4.20 * 0.86 + 205.61 * 4 * 1 + 0 + 0) / (4.05 * 0.57 + 4.20 * 0.86 + 4 * 1 + 1 + 1) = 131.53779716115255
p2 = (205.61 * 4 * 1 + 120 * 4.20 * 0.86 + 135.14 * 4.05 * 0.57) / max_coefficients = 114.69124318738521
score = 131.53779716115255 * 0.5 + 114.69124318738521 * 0.5 = 123.11452017426888
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-11-06 | 121 | 123.11 |
IX Russian Riichi Championship: 100% -> 86% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 206 |
|
86/108 | 100% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 2 | 120 |
|
67/76 | 86% | 4.20 | RR | IX Russian Riichi Championship | Perm | |
| 3 | 135 |
|
97/112 | 57% | 4.05 | RR | Moscow Riichi 2022 | Moscow |