Kopylov Dmitry
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date Aug. 31, 2026 (latest changes Aug. 31, 2026).
278 place (199.63).
how we calculated rating score
max_coefficients = (4.71 * 1 + 3.90 * 1 + 3.40 * 1 + 3.40 * 1) = 15.41
p1 = (978.95 * 3.85 * 0.14 + 123.60 * 3.75 * 0.14 + 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) / (3.85 * 0.14 + 3.75 * 0.14 + 3.25 * 0.43 + 1.90 * 0.57 + 2 * 0.71 + 3.45 * 0.86 + 3.40 * 1 + 1.70 * 1 + 1.80 * 1) = 241.6882684427092
p2 = (354.84 * 1.80 * 1 + 366.67 * 1.70 * 1 + 423.73 * 3.25 * 0.43 + 194.81 * 3.45 * 0.86) / max_coefficients = 157.58014276443868
score = 241.6882684427092 * 0.5 + 157.58014276443868 * 0.5 = 199.63420560357395
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 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% |
| 2026-08-15 | 268 -> 269 | 210.96 -> 211.61 | |
| 2026-08-14 | 270 -> 268 | 208.81 -> 210.96 |
Tonpu-master: 86% -> 71% |
| 2026-08-13 | 275 -> 270 | 206.92 -> 208.81 |
Moscow Riichi 2024: 29% -> 14% |
| 2026-08-04 | 279 -> 275 | 206.92 | |
| 2026-08-02 | 273 -> 279 | 206.92 | |
| 2026-07-26 | 272 -> 273 | 206.92 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 355 |
|
21/32 | 100% | 1.80 | RR | Seihoku Summer Tournament 2026 | Saint Petersburg | |
| 2 | 367 |
|
20/31 | 100% | 1.70 | RR | Seihoku spring tournament 2026 | Saint Petersburg | |
| 3 | 54 |
|
71/75 | 100% | 3.40 | RR | White Wolf Cup 2026 | Saint Petersburg | |
| 4 | 195 |
|
63/78 | 86% | 3.45 | RR | SPB Riichi Open 2025 | Saint Petersburg | |
| 5 | 0 |
|
19/19 | 71% | 2.00 | CRR | Tonpu-master | Saint Petersburg | |
| 6 | 343 |
|
24/36 | 57% | 1.90 | RR | Seihoku spring tournament 2025 | Saint Petersburg | |
| 7 | 424 |
|
35/60 | 43% | 3.25 | RR | White Wolf Cup | Saint Petersburg | |
| 8 | 124 |
|
79/90 | 14% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 9 | 979 |
|
🥉 | 3/96 | 14% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg |
| 10 | 630 |
|
18/47 | 0% | 2.10 | RR | Seihoku spring tournament 2024 | Saint Petersburg | |
| 11 | 206 |
|
86/108 | 0% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 12 | 435 |
|
14/24 | 0% | 1.40 | CRR | Fire cup 2023 | Saint Petersburg | |
| 13 | 0 |
|
32/32 | 0% | 1.80 | CRR | Earth cup | Saint Petersburg | |
| 14 | 120 |
|
67/76 | 0% | 4.20 | RR | IX Russian Riichi Championship | Perm | |
| 15 | 385 |
|
25/40 | 0% | 1.80 | CRR | Sun tournament | Saint Petersburg | |
| 16 | 135 |
|
97/112 | 0% | 4.05 | RR | Moscow Riichi 2022 | Moscow |