Kopylov Dmitry
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date May 17, 2026 (latest changes May 17, 2026).
229 place (237.84).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.45 * 1 + 3.40 * 1) = 14.85
p1 = (978.95 * 3.85 * 0.29 + 123.60 * 3.75 * 0.43 + 423.73 * 3.25 * 0.71 + 342.86 * 1.90 * 0.86 + 0 * 2 * 1 + 194.81 * 3.45 * 1 + 54.05 * 3.40 * 1 + 366.67 * 1.70 * 1) / (3.85 * 0.29 + 3.75 * 0.43 + 3.25 * 0.71 + 1.90 * 0.86 + 2 * 1 + 3.45 * 1 + 3.40 * 1 + 1.70 * 1) = 249.70128713860976
p2 = (978.95 * 3.85 * 0.29 + 423.73 * 3.25 * 0.71 + 194.81 * 3.45 * 1 + 366.67 * 1.70 * 1) / max_coefficients = 225.98518518518517
score = 249.70128713860976 * 0.5 + 225.98518518518517 * 0.5 = 237.84323616189747
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-05-17 | 230 -> 229 | 237.84 | |
| 2026-05-12 | 235 -> 230 | 237.84 | |
| 2026-05-11 | 233 -> 235 | 237.84 | |
| 2026-05-03 | 227 -> 233 | 237.09 -> 237.84 | |
| 2026-05-01 | 209 -> 227 | 266.40 -> 237.09 |
SPB Riichi Open 2024: 43% -> 29% |
| 2026-04-29 | 210 -> 209 | 266.40 | |
| 2026-04-27 | 211 -> 210 | 266.40 | |
| 2026-04-26 | 210 -> 211 | 267.87 -> 266.40 |
Seihoku spring tournament 2025: 100% -> 86% |
| 2026-04-19 | 199 -> 210 | 267.87 | |
| 2026-04-16 | 198 -> 199 | 276.33 -> 267.87 |
White Wolf Cup: 86% -> 71% |
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 | 86% | 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 | 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 |