Kopylov Dmitry
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date Jan. 6, 2024 (latest changes Jan. 6, 2024).
141 place (173.48).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.71 + 2.90 * 1) = 13.650060000000002
p1 = (135.14 * 4.05 * 0.43 + 384.62 * 1.80 * 0.57 + 120 * 4.20 * 0.71 + 0 * 1.80 * 1 + 434.78 * 1.40 * 1 + 205.61 * 4 * 1) / (4.05 * 0.43 + 1.80 * 0.57 + 4.20 * 0.71 + 1.80 * 1 + 1.40 * 1 + 4 * 1) = 186.76438033045855
p2 = (205.61 * 4 * 1 + 434.78 * 1.40 * 1 + 384.62 * 1.80 * 0.57 + 120 * 4.20 * 0.71) / max_coefficients = 160.1985632297587
score = 186.76438033045855 * 0.5 + 160.1985632297587 * 0.5 = 173.48147178010862
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-01-06 | 142 -> 141 | 171.16 -> 173.48 |
IX Russian Riichi Championship: 86% -> 71% |
| 2024-01-05 | 144 -> 142 | 171.16 | |
| 2023-12-27 | 141 -> 144 | 176.50 -> 171.16 |
Sun tournament: 71% -> 57% |
| 2023-12-19 | 148 -> 141 | 176.50 | |
| 2023-12-12 | 151 -> 148 | 175.45 -> 176.50 |
Moscow Riichi 2022: 57% -> 43% |
| 2023-11-28 | 156 -> 151 | 175.45 | |
| 2023-11-26 | 151 -> 156 | 176.03 -> 175.45 | |
| 2023-11-20 | 153 -> 151 | 176.03 | |
| 2023-11-09 | 154 -> 153 | 176.03 | |
| 2023-11-06 | 155 -> 154 | 173.77 -> 176.03 |
IX Russian Riichi Championship: 100% -> 86% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 206 |
|
86/108 | 100% | 4.00 | RR | SPB Riichi Open 2023 |
| 2 | 435 |
|
14/24 | 100% | 1.40 | CRR | Fire cup 2023 |
| 3 | 0 |
|
32/32 | 100% | 1.80 | CRR | Earth cup |
| 4 | 120 |
|
67/76 | 71% | 4.20 | RR | IX Russian Riichi Championship |
| 5 | 385 |
|
25/40 | 57% | 1.80 | CRR | Sun tournament |
| 6 | 135 |
|
97/112 | 43% | 4.05 | RR | Moscow Riichi 2022 |