Kopylov Dmitry
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date Feb. 9, 2026 (latest changes Feb. 8, 2026).
155 place (332.66).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (630.43 * 2.10 * 0.14 + 978.95 * 3.85 * 0.57 + 123.60 * 3.75 * 0.71 + 423.73 * 3.25 * 1 + 342.86 * 1.90 * 1 + 0 * 2 * 1 + 194.81 * 3.45 * 1) / (2.10 * 0.14 + 3.85 * 0.57 + 3.75 * 0.71 + 3.25 * 1 + 1.90 * 1 + 2 * 1 + 3.45 * 1) = 340.6175641002484
p2 = (978.95 * 3.85 * 0.57 + 423.73 * 3.25 * 1 + 194.81 * 3.45 * 1 + 342.86 * 1.90 * 1) / max_coefficients = 324.69632107023415
score = 340.6175641002484 * 0.5 + 324.69632107023415 * 0.5 = 332.65694258524127
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-02-08 | 151 -> 155 | 332.66 | |
| 2026-02-04 | 153 -> 151 | 332.66 | |
| 2026-02-02 | 154 -> 153 | 332.66 | |
| 2026-01-30 | 153 -> 154 | 335.36 -> 332.66 |
Seihoku spring tournament 2024: 29% -> 14% |
| 2026-01-25 | 152 -> 153 | 335.36 | |
| 2026-01-12 | 154 -> 152 | 335.36 | |
| 2026-01-07 | 149 -> 154 | 335.36 | |
| 2026-01-03 | 148 -> 149 | 335.36 | |
| 2026-01-01 | 133 -> 148 | 363.84 -> 335.36 |
SPB Riichi Open 2024: 71% -> 57% |
| 2025-12-29 | 134 -> 133 | 363.84 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 195 |
|
63/78 | 100% | 3.45 | RR | SPB Riichi Open 2025 | Saint Petersburg | |
| 2 | 0 |
|
19/19 | 100% | 2.00 | CRR | Tonpu-master | Saint Petersburg | |
| 3 | 343 |
|
24/36 | 100% | 1.90 | RR | Seihoku spring tournament 2025 | Saint Petersburg | |
| 4 | 424 |
|
35/60 | 100% | 3.25 | RR | White Wolf Cup | Saint Petersburg | |
| 5 | 124 |
|
79/90 | 71% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 6 | 979 |
|
🥉 | 3/96 | 57% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg |
| 7 | 630 |
|
18/47 | 14% | 2.10 | RR | Seihoku spring tournament 2024 | Saint Petersburg | |
| 8 | 206 |
|
86/108 | 0% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 9 | 435 |
|
14/24 | 0% | 1.40 | CRR | Fire cup 2023 | Saint Petersburg | |
| 10 | 0 |
|
32/32 | 0% | 1.80 | CRR | Earth cup | Saint Petersburg | |
| 11 | 120 |
|
67/76 | 0% | 4.20 | RR | IX Russian Riichi Championship | Perm | |
| 12 | 385 |
|
25/40 | 0% | 1.80 | CRR | Sun tournament | Saint Petersburg | |
| 13 | 135 |
|
97/112 | 0% | 4.05 | RR | Moscow Riichi 2022 | Moscow |