Kopylov Dmitry
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date May 3, 2023 (latest changes May 3, 2023).
125 place (172.48).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 0.86 + 2.80 * 1) = 14.04985
p1 = (135.14 * 4.05 * 1 + 384.62 * 1.80 * 1 + 120 * 4.20 * 1 + 0 * 1.80 * 1 + 434.78 * 1.40 * 1) / (4.05 * 1 + 1.80 * 1 + 4.20 * 1 + 1.80 * 1 + 1.40 * 1) = 177.5328301886792
p2 = (384.62 * 1.80 * 1 + 434.78 * 1.40 * 1 + 135.14 * 4.05 * 1 + 120 * 4.20 * 1) / max_coefficients = 167.425986754307
score = 177.5328301886792 * 0.5 + 167.425986754307 * 0.5 = 172.47940847149312
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-05-01 | 123 -> 125 | 172.48 | |
| 2023-04-22 | 129 -> 123 | 129.90 -> 172.48 |
Fire cup 2023: 0% -> 100% |
| 2023-03-20 | 129 | 127.76 -> 129.90 | |
| 2023-03-05 | 130 -> 129 | 127.76 | |
| 2023-02-25 | 121 -> 130 | 132.27 -> 127.76 |
Earth cup: 0% -> 100% |
| 2023-01-28 | 122 -> 121 | 131.63 -> 132.27 | |
| 2023-01-14 | 119 -> 122 | 131.63 | |
| 2023-01-05 | 120 -> 119 | 131.63 | |
| 2023-01-03 | 124 -> 120 | 131.63 | |
| 2022-12-19 | 124 | 131.06 -> 131.63 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 435 |
|
14/24 | 100% | 1.40 | CRR | Fire cup 2023 |
| 2 | 0 |
|
32/32 | 100% | 1.80 | CRR | Earth cup |
| 3 | 120 |
|
67/76 | 100% | 4.20 | RR | IX Russian Riichi Championship |
| 4 | 385 |
|
25/40 | 100% | 1.80 | CRR | Sun tournament |
| 5 | 135 |
|
97/112 | 100% | 4.05 | RR | Moscow Riichi 2022 |