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 | 125 -> 121 | 122.95 -> 123.11 |
IX Russian Riichi Championship: 100% -> 86% |
2023-10-12 | 125 | 123.43 -> 122.95 |
Moscow Riichi 2022: 71% -> 57% |
2023-09-28 | 126 -> 125 | 123.43 | |
2023-09-20 | 128 -> 126 | 123.43 | |
2023-09-06 | 129 -> 128 | 123.43 | |
2023-09-03 | 115 -> 129 | 79.18 -> 123.43 |
SPB Riichi Open 2023: 0% -> 100% |
2023-08-19 | 116 -> 115 | 79.18 | |
2023-08-12 | 115 -> 116 | 81.85 -> 79.18 |
Moscow Riichi 2022: 86% -> 71% |
2023-07-28 | 116 -> 115 | 81.85 | |
2023-07-20 | 116 | 80.54 -> 81.85 |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 206 |
|
86/108 | 100% | 4.00 | RR | SPB Riichi Open 2023 |
2 | 120 |
|
67/76 | 86% | 4.20 | RR | IX Russian Riichi Championship |
3 | 135 |
|
97/112 | 57% | 4.05 | RR | Moscow Riichi 2022 |