Kopylov Dmitry
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date April 20, 2026 (latest changes April 19, 2026).
210 place (267.87).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (978.95 * 3.85 * 0.43 + 123.60 * 3.75 * 0.43 + 423.73 * 3.25 * 0.71 + 342.86 * 1.90 * 1 + 0 * 2 * 1 + 194.81 * 3.45 * 1 + 54.05 * 3.40 * 1 + 366.67 * 1.70 * 1) / (3.85 * 0.43 + 3.75 * 0.43 + 3.25 * 0.71 + 1.90 * 1 + 2 * 1 + 3.45 * 1 + 3.40 * 1 + 1.70 * 1) = 273.35765178393393
p2 = (978.95 * 3.85 * 0.43 + 423.73 * 3.25 * 0.71 + 194.81 * 3.45 * 1 + 342.86 * 1.90 * 1) / max_coefficients = 262.37859531772574
score = 273.35765178393393 * 0.5 + 262.37859531772574 * 0.5 = 267.86812355082986
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-04-19 | 199 -> 210 | 267.87 | |
| 2026-04-16 | 198 -> 199 | 276.33 -> 267.87 |
White Wolf Cup: 86% -> 71% |
| 2026-04-13 | 201 -> 198 | 274.17 -> 276.33 |
Moscow Riichi 2024: 57% -> 43% |
| 2026-04-11 | 195 -> 201 | 269.57 -> 274.17 |
Seihoku spring tournament 2026: 0% -> 100% |
| 2026-04-09 | 196 -> 195 | 269.57 | |
| 2026-04-05 | 192 -> 196 | 269.57 | |
| 2026-04-04 | 195 -> 192 | 269.57 | |
| 2026-04-02 | 196 -> 195 | 269.57 | |
| 2026-03-30 | 195 -> 196 | 272.69 -> 269.57 |
Seihoku spring tournament 2024: 14% -> 0% |
| 2026-03-21 | 192 -> 195 | 272.69 |
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 | 100% | 2.00 | CRR | Tonpu-master | Saint Petersburg | |
| 5 | 343 |
|
24/36 | 100% | 1.90 | RR | Seihoku spring tournament 2025 | Saint Petersburg | |
| 6 | 424 |
|
35/60 | 71% | 3.25 | RR | White Wolf Cup | Saint Petersburg | |
| 7 | 124 |
|
79/90 | 43% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 8 | 979 |
|
🥉 | 3/96 | 43% | 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 |