Kopylov Dmitry
From Saint Petersburg, Russia
Internal rating (RR)
Rating date Dec. 19, 2023 (latest changes Dec. 19, 2023).
98 place (122.57).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.86 + 4.05 * 0.43) = 13.085650000000001
p1 = (135.14 * 4.05 * 0.43 + 120 * 4.20 * 0.86 + 205.61 * 4 * 1 + 0 + 0) / (4.05 * 0.43 + 4.20 * 0.86 + 4 * 1 + 1 + 1) = 131.3537379859117
p2 = (205.61 * 4 * 1 + 120 * 4.20 * 0.86 + 135.14 * 4.05 * 0.43) / max_coefficients = 113.78724022115827
score = 131.3537379859117 * 0.5 + 113.78724022115827 * 0.5 = 122.57048910353498
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2023-12-19 | 111 -> 98 | 122.57 | |
2023-12-12 | 111 | 123.11 -> 122.57 |
Moscow Riichi 2022: 57% -> 43% |
2023-11-28 | 121 -> 111 | 123.11 | |
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 |
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 | 43% | 4.05 | RR | Moscow Riichi 2022 |