Kopylov Dmitry
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date Oct. 11, 2024 (latest changes Oct. 11, 2024).
73 place (467.04).
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 * 0.14 + 0 * 1.80 * 0.43 + 434.78 * 1.40 * 0.57 + 205.61 * 4 * 0.86 + 630.43 * 2.10 * 1 + 978.95 * 3.85 * 1) / (4.20 * 0.14 + 1.80 * 0.43 + 1.40 * 0.57 + 4 * 0.86 + 2.10 * 1 + 3.85 * 1) = 538.31854836615
p2 = (978.95 * 3.85 * 1 + 630.43 * 2.10 * 1 + 205.61 * 4 * 0.86 + 434.78 * 1.40 * 0.57) / max_coefficients = 395.7632466963757
score = 538.31854836615 * 0.5 + 395.7632466963757 * 0.5 = 467.0408975312629
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-10-11 | 74 -> 73 | 467.04 | |
| 2024-09-06 | 77 -> 74 | 456.72 -> 467.04 |
IX Russian Riichi Championship: 29% -> 14% |
| 2024-09-03 | 79 -> 77 | 446.33 -> 456.72 |
SPB Riichi Open 2023: 100% -> 86% |
| 2024-09-01 | 135 -> 79 | 234.90 -> 446.33 |
SPB Riichi Open 2024: 0% -> 100% |
| 2024-08-26 | 138 -> 135 | 236.13 -> 234.90 | |
| 2024-08-25 | 142 -> 138 | 232.03 -> 236.13 |
Earth cup: 57% -> 43% |
| 2024-08-22 | 138 -> 142 | 236.36 -> 232.03 |
Fire cup 2023: 71% -> 57% |
| 2024-08-11 | 138 | 235.42 -> 236.36 | |
| 2024-08-04 | 137 -> 138 | 238.97 -> 235.42 | |
| 2024-07-14 | 131 -> 137 | 238.97 |
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 | 435 |
|
14/24 | 57% | 1.40 | CRR | Fire cup 2023 |
| 5 | 0 |
|
32/32 | 43% | 1.80 | CRR | Earth cup |
| 6 | 120 |
|
67/76 | 14% | 4.20 | RR | IX Russian Riichi Championship |
| 7 | 385 |
|
25/40 | 0% | 1.80 | CRR | Sun tournament |
| 8 | 135 |
|
97/112 | 0% | 4.05 | RR | Moscow Riichi 2022 |