Kopylov Dmitry
From Saint Petersburg, Russia
Internal rating (RR)
Rating date May 5, 2026 (latest changes May 3, 2026).
173 place (254.26).
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 + 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 + 3.45 * 1 + 3.40 * 1 + 1.70 * 1) = 282.54125030577706
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 = 282.54125030577706 * 0.5 + 225.98518518518517 * 0.5 = 254.2632177454811
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-05-03 | 170 -> 173 | 253.51 -> 254.26 | |
| 2026-05-01 | 159 -> 170 | 283.68 -> 253.51 |
SPB Riichi Open 2024: 43% -> 29% |
| 2026-04-26 | 157 -> 159 | 284.92 -> 283.68 |
Seihoku spring tournament 2025: 100% -> 86% |
| 2026-04-19 | 153 -> 157 | 284.92 | |
| 2026-04-16 | 152 -> 153 | 293.13 -> 284.92 |
White Wolf Cup: 86% -> 71% |
| 2026-04-13 | 155 -> 152 | 290.19 -> 293.13 |
Moscow Riichi 2024: 57% -> 43% |
| 2026-04-11 | 153 -> 155 | 286.76 -> 290.19 |
Seihoku spring tournament 2026: 0% -> 100% |
| 2026-04-09 | 151 -> 153 | 286.76 | |
| 2026-04-05 | 149 -> 151 | 286.76 | |
| 2026-04-04 | 152 -> 149 | 286.76 |
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 | 343 |
|
24/36 | 86% | 1.90 | RR | Seihoku spring tournament 2025 | Saint Petersburg | |
| 5 | 424 |
|
35/60 | 71% | 3.25 | RR | White Wolf Cup | Saint Petersburg | |
| 6 | 124 |
|
79/90 | 43% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 7 | 979 |
|
🥉 | 3/96 | 29% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg |
| 8 | 630 |
|
18/47 | 0% | 2.10 | RR | Seihoku spring tournament 2024 | Saint Petersburg | |
| 9 | 206 |
|
86/108 | 0% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 10 | 120 |
|
67/76 | 0% | 4.20 | RR | IX Russian Riichi Championship | Perm | |
| 11 | 135 |
|
97/112 | 0% | 4.05 | RR | Moscow Riichi 2022 | Moscow |