Kopylov Dmitry
From Saint Petersburg, Russia
Internal rating (RR)
Rating date July 31, 2026 (latest changes July 26, 2026).
197 place (220.41).
how we calculated rating score
max_coefficients = (4.71 * 1 + 3.90 * 1 + 4.10 * 0.86 + 3.45 * 1) = 15.574109999999997
p1 = (978.95 * 3.85 * 0.14 + 123.60 * 3.75 * 0.29 + 423.73 * 3.25 * 0.57 + 342.86 * 1.90 * 0.71 + 194.81 * 3.45 * 1 + 54.05 * 3.40 * 1 + 366.67 * 1.70 * 1 + 354.84 * 1.80 * 1) / (3.85 * 0.14 + 3.75 * 0.29 + 3.25 * 0.57 + 1.90 * 0.71 + 3.45 * 1 + 3.40 * 1 + 1.70 * 1 + 1.80 * 1) = 266.1118047433912
p2 = (423.73 * 3.25 * 0.57 + 194.81 * 3.45 * 1 + 354.84 * 1.80 * 1 + 366.67 * 1.70 * 1) / max_coefficients = 174.7136754524015
score = 266.1118047433912 * 0.5 + 174.7136754524015 * 0.5 = 220.41274009789635
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-07-25 | 200 -> 197 | 211.23 -> 220.41 |
Seihoku Summer Tournament 2026: 0% -> 100% |
| 2026-07-18 | 196 -> 200 | 211.23 | |
| 2026-07-14 | 197 -> 196 | 211.23 | |
| 2026-07-12 | 196 -> 197 | 211.23 | |
| 2026-07-01 | 179 -> 196 | 242.81 -> 211.23 |
SPB Riichi Open 2024: 29% -> 14% |
| 2026-06-26 | 179 | 243.38 -> 242.81 |
Seihoku spring tournament 2025: 86% -> 71% |
| 2026-06-16 | 178 -> 179 | 251.91 -> 243.38 |
White Wolf Cup: 71% -> 57% |
| 2026-06-15 | 180 -> 178 | 248.01 -> 251.91 | |
| 2026-06-14 | 159 -> 180 | 257.17 -> 248.01 | |
| 2026-06-13 | 162 -> 159 | 254.26 -> 257.17 |
Moscow Riichi 2024: 43% -> 29% |
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 | 100% | 3.45 | RR | SPB Riichi Open 2025 | Saint Petersburg | |
| 5 | 343 |
|
24/36 | 71% | 1.90 | RR | Seihoku spring tournament 2025 | Saint Petersburg | |
| 6 | 424 |
|
35/60 | 57% | 3.25 | RR | White Wolf Cup | Saint Petersburg | |
| 7 | 124 |
|
79/90 | 29% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 8 | 979 |
|
🥉 | 3/96 | 14% | 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 | 120 |
|
67/76 | 0% | 4.20 | RR | IX Russian Riichi Championship | Perm | |
| 12 | 135 |
|
97/112 | 0% | 4.05 | RR | Moscow Riichi 2022 | Moscow |