Kopylov Dmitry
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date June 9, 2024 (latest changes June 9, 2024).
142 place (231.29).
how we calculated rating score
max_coefficients = (4.60 * 1 + 4 * 1 + 3.75 * 1 + 3.05 * 1) = 15.399999999999999
p1 = (135.14 * 4.05 * 0.14 + 384.62 * 1.80 * 0.29 + 120 * 4.20 * 0.43 + 0 * 1.80 * 0.71 + 434.78 * 1.40 * 0.86 + 205.61 * 4 * 1 + 630.43 * 2.10 * 1) / (4.05 * 0.14 + 1.80 * 0.29 + 4.20 * 0.43 + 1.80 * 0.71 + 1.40 * 0.86 + 4 * 1 + 2.10 * 1) = 275.29520712304117
p2 = (630.43 * 2.10 * 1 + 205.61 * 4 * 1 + 434.78 * 1.40 * 0.86 + 120 * 4.20 * 0.43) / max_coefficients = 187.27662337662343
score = 275.29520712304117 * 0.5 + 187.27662337662343 * 0.5 = 231.2859152498323
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-06-09 | 131 -> 142 | 231.29 | |
| 2024-05-25 | 128 -> 131 | 231.29 | |
| 2024-05-19 | 126 -> 128 | 231.29 | |
| 2024-05-12 | 107 -> 126 | 242.91 -> 231.29 | |
| 2024-05-06 | 111 -> 107 | 241.68 -> 242.91 |
IX Russian Riichi Championship: 57% -> 43% |
| 2024-05-05 | 110 -> 111 | 241.68 | |
| 2024-05-01 | 111 -> 110 | 241.68 | |
| 2024-04-27 | 111 | 243.22 -> 241.68 |
Sun tournament: 43% -> 29% |
| 2024-04-25 | 113 -> 111 | 240.46 -> 243.22 |
Earth cup: 86% -> 71% |
| 2024-04-22 | 111 -> 113 | 244.97 -> 240.46 |
Fire cup 2023: 100% -> 86% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 630 |
|
18/47 | 100% | 2.10 | RR | Seihoku spring tournament 2024 |
| 2 | 206 |
|
86/108 | 100% | 4.00 | RR | SPB Riichi Open 2023 |
| 3 | 435 |
|
14/24 | 86% | 1.40 | CRR | Fire cup 2023 |
| 4 | 0 |
|
32/32 | 71% | 1.80 | CRR | Earth cup |
| 5 | 120 |
|
67/76 | 43% | 4.20 | RR | IX Russian Riichi Championship |
| 6 | 385 |
|
25/40 | 29% | 1.80 | CRR | Sun tournament |
| 7 | 135 |
|
97/112 | 14% | 4.05 | RR | Moscow Riichi 2022 |