Kopylov Dmitry
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date Oct. 13, 2026 (latest changes Oct. 13, 2026).
215 place (279.73).
how we calculated rating score
max_coefficients = (4.71 * 1 + 3.90 * 1 + 3.40 * 1 + 3.40 * 1) = 15.41
p1 = (423.73 * 3.25 * 0.43 + 342.86 * 1.90 * 0.57 + 0 * 2 * 0.71 + 194.81 * 3.45 * 0.86 + 54.05 * 3.40 * 1 + 366.67 * 1.70 * 1 + 354.84 * 1.80 * 1 + 633.80 * 3.40 * 1) / (3.25 * 0.43 + 1.90 * 0.57 + 2 * 0.71 + 3.45 * 0.86 + 3.40 * 1 + 1.70 * 1 + 1.80 * 1 + 3.40 * 1) = 299.41672218433655
p2 = (633.80 * 3.40 * 1 + 354.84 * 1.80 * 1 + 366.67 * 1.70 * 1 + 423.73 * 3.25 * 0.43) / max_coefficients = 260.03893575600256
score = 299.41672218433655 * 0.5 + 260.03893575600256 * 0.5 = 279.7278289701695
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-10-13 | 223 -> 215 | 277.07 -> 279.73 |
Moscow Riichi 2024: 14% -> 0% |
| 2026-10-10 | 222 -> 223 | 277.07 | |
| 2026-10-02 | 224 -> 222 | 277.07 | |
| 2026-10-01 | 225 -> 224 | 277.07 | |
| 2026-09-06 | 284 -> 225 | 185.45 -> 277.07 |
Sunset Wolf Cup 2026: 0% -> 100% |
| 2026-09-01 | 278 -> 284 | 199.63 -> 185.45 |
SPB Riichi Open 2024: 14% -> 0% |
| 2026-08-31 | 279 -> 278 | 201.73 -> 199.63 |
SPB Riichi Open 2025: 100% -> 86% |
| 2026-08-30 | 276 -> 279 | 201.73 | |
| 2026-08-26 | 276 | 202.62 -> 201.73 |
Seihoku spring tournament 2025: 71% -> 57% |
| 2026-08-16 | 269 -> 276 | 211.61 -> 202.62 |
White Wolf Cup: 57% -> 43% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 634 |
|
27/72 | 100% | 3.40 | RR | Sunset Wolf Cup 2026 | Saint Petersburg | |
| 2 | 355 |
|
21/32 | 100% | 1.80 | RR | Seihoku Summer Tournament 2026 | Saint Petersburg | |
| 3 | 367 |
|
20/31 | 100% | 1.70 | RR | Seihoku spring tournament 2026 | Saint Petersburg | |
| 4 | 54 |
|
71/75 | 100% | 3.40 | RR | White Wolf Cup 2026 | Saint Petersburg | |
| 5 | 195 |
|
63/78 | 86% | 3.45 | RR | SPB Riichi Open 2025 | Saint Petersburg | |
| 6 | 0 |
|
19/19 | 71% | 2.00 | CRR | Tonpu-master | Saint Petersburg | |
| 7 | 343 |
|
24/36 | 57% | 1.90 | RR | Seihoku spring tournament 2025 | Saint Petersburg | |
| 8 | 424 |
|
35/60 | 43% | 3.25 | RR | White Wolf Cup | Saint Petersburg | |
| 9 | 124 |
|
79/90 | 0% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 10 | 979 |
|
🥉 | 3/96 | 0% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg |
| 11 | 630 |
|
18/47 | 0% | 2.10 | RR | Seihoku spring tournament 2024 | Saint Petersburg | |
| 12 | 206 |
|
86/108 | 0% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 13 | 435 |
|
14/24 | 0% | 1.40 | CRR | Fire cup 2023 | Saint Petersburg | |
| 14 | 0 |
|
32/32 | 0% | 1.80 | CRR | Earth cup | Saint Petersburg | |
| 15 | 120 |
|
67/76 | 0% | 4.20 | RR | IX Russian Riichi Championship | Perm | |
| 16 | 385 |
|
25/40 | 0% | 1.80 | CRR | Sun tournament | Saint Petersburg | |
| 17 | 135 |
|
97/112 | 0% | 4.05 | RR | Moscow Riichi 2022 | Moscow |