Kopylov Dmitry
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date June 29, 2026 (latest changes June 29, 2026).
253 place (227.32).
how we calculated rating score
max_coefficients = (4.71 * 1 + 3.90 * 1 + 4.10 * 0.86 + 3.45 * 1) = 15.574109999999997
p1 = (978.95 * 3.85 * 0.29 + 123.60 * 3.75 * 0.29 + 423.73 * 3.25 * 0.57 + 342.86 * 1.90 * 0.71 + 0 * 2 * 0.86 + 194.81 * 3.45 * 1 + 54.05 * 3.40 * 1 + 366.67 * 1.70 * 1) / (3.85 * 0.29 + 3.75 * 0.29 + 3.25 * 0.57 + 1.90 * 0.71 + 2 * 0.86 + 3.45 * 1 + 3.40 * 1 + 1.70 * 1) = 251.80034939877598
p2 = (978.95 * 3.85 * 0.29 + 423.73 * 3.25 * 0.57 + 194.81 * 3.45 * 1 + 366.67 * 1.70 * 1) / max_coefficients = 202.8424096144178
score = 251.80034939877598 * 0.5 + 202.8424096144178 * 0.5 = 227.32137950659688
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-06-27 | 254 -> 253 | 227.32 | |
| 2026-06-26 | 254 | 228.10 -> 227.32 |
Seihoku spring tournament 2025: 86% -> 71% |
| 2026-06-16 | 246 -> 254 | 236.83 -> 228.10 |
White Wolf Cup: 71% -> 57% |
| 2026-06-15 | 246 | 232.92 -> 236.83 | |
| 2026-06-14 | 229 -> 246 | 239.87 -> 232.92 |
Tonpu-master: 100% -> 86% |
| 2026-06-13 | 234 -> 229 | 237.84 -> 239.87 |
Moscow Riichi 2024: 43% -> 29% |
| 2026-06-04 | 236 -> 234 | 237.84 | |
| 2026-06-02 | 237 -> 236 | 237.84 | |
| 2026-05-31 | 229 -> 237 | 237.84 | |
| 2026-05-25 | 230 -> 229 | 237.84 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 367 |
|
20/31 | 100% | 1.70 | RR | Seihoku spring tournament 2026 | Saint Petersburg | |
| 2 | 54 |
|
71/75 | 100% | 3.40 | RR | White Wolf Cup 2026 | Saint Petersburg | |
| 3 | 195 |
|
63/78 | 100% | 3.45 | RR | SPB Riichi Open 2025 | Saint Petersburg | |
| 4 | 0 |
|
19/19 | 86% | 2.00 | CRR | Tonpu-master | Saint Petersburg | |
| 5 | 343 |
|
24/36 | 71% | 1.90 | RR | Seihoku spring tournament 2025 | Saint Petersburg | |
| 6 | 424 |
|
35/60 | 57% | 3.25 | RR | White Wolf Cup | Saint Petersburg | |
| 7 | 124 |
|
79/90 | 29% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 8 | 979 |
|
🥉 | 3/96 | 29% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg |
| 9 | 630 |
|
18/47 | 0% | 2.10 | RR | Seihoku spring tournament 2024 | Saint Petersburg | |
| 10 | 206 |
|
86/108 | 0% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 11 | 435 |
|
14/24 | 0% | 1.40 | CRR | Fire cup 2023 | Saint Petersburg | |
| 12 | 0 |
|
32/32 | 0% | 1.80 | CRR | Earth cup | Saint Petersburg | |
| 13 | 120 |
|
67/76 | 0% | 4.20 | RR | IX Russian Riichi Championship | Perm | |
| 14 | 385 |
|
25/40 | 0% | 1.80 | CRR | Sun tournament | Saint Petersburg | |
| 15 | 135 |
|
97/112 | 0% | 4.05 | RR | Moscow Riichi 2022 | Moscow |