Kopylov Dmitry
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date Sept. 1, 2024 (latest changes Sept. 1, 2024).
79 place (446.33).
how we calculated rating score
max_coefficients = (4.60 * 1 + 4 * 1 + 3.85 * 1 + 3.65 * 1) = 16.099999999999998
p1 = (120 * 4.20 * 0.29 + 0 * 1.80 * 0.43 + 434.78 * 1.40 * 0.57 + 205.61 * 4 * 1 + 630.43 * 2.10 * 1 + 978.95 * 3.85 * 1) / (4.20 * 0.29 + 1.80 * 0.43 + 1.40 * 0.57 + 4 * 1 + 2.10 * 1 + 3.85 * 1) = 503.6474030333187
p2 = (978.95 * 3.85 * 1 + 630.43 * 2.10 * 1 + 205.61 * 4 * 1 + 434.78 * 1.40 * 0.57) / max_coefficients = 389.01242236024854
score = 503.6474030333187 * 0.5 + 389.01242236024854 * 0.5 = 446.3299126967836
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 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 | |
| 2024-07-06 | 132 -> 131 | 236.25 -> 238.97 |
IX Russian Riichi Championship: 43% -> 29% |
| 2024-06-27 | 132 | 237.49 -> 236.25 |
Sun tournament: 29% -> 14% |
| 2024-06-25 | 136 -> 132 | 234.04 -> 237.49 |
Earth cup: 71% -> 57% |
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 | 100% | 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 | 29% | 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 |