Melkov Dmitrii
From Saint Petersburg, Russia
Internal rating (RR)
Rating date Dec. 10, 2025 (latest changes Dec. 9, 2025).
103 place (398.74).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (333.33 * 3.05 * 0.29 + 826.09 * 2.10 * 0.29 + 579.44 * 4.60 * 0.43 + 677.97 * 3.25 * 1 + 171.43 * 1.90 * 1) / (3.05 * 0.29 + 2.10 * 0.29 + 4.60 * 0.43 + 3.25 * 1 + 1.90 * 1) = 518.7517856280436
p2 = (677.97 * 3.25 * 1 + 579.44 * 4.60 * 0.43 + 826.09 * 2.10 * 0.29 + 171.43 * 1.90 * 1) / max_coefficients = 278.7377926421405
score = 518.7517856280436 * 0.5 + 278.7377926421405 * 0.5 = 398.7447891350921
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-12-09 | 104 -> 103 | 398.74 | |
| 2025-12-07 | 103 -> 104 | 398.74 | |
| 2025-12-04 | 104 -> 103 | 398.74 | |
| 2025-11-30 | 101 -> 104 | 412.22 -> 398.74 |
Seihoku spring tournament 2024: 43% -> 29% |
| 2025-11-12 | 97 -> 101 | 426.68 -> 412.22 |
X Russian Championship: 57% -> 43% |
| 2025-11-10 | 97 | 426.01 -> 426.68 |
Agari Spring Tournament 2024: 43% -> 29% |
| 2025-11-04 | 91 -> 97 | 433.47 -> 426.01 | |
| 2025-11-01 | 93 -> 91 | 432.87 -> 433.47 | |
| 2025-10-13 | 93 | 427.68 -> 432.87 | |
| 2025-10-09 | 94 -> 93 | 427.68 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 171 |
|
30/36 | 100% | 1.90 | RR | Seihoku spring tournament 2025 | Saint Petersburg | |
| 2 | 678 |
|
20/60 | 100% | 3.25 | RR | White Wolf Cup | Saint Petersburg | |
| 3 | 579 |
|
46/108 | 43% | 4.60 | RR | X Russian Championship | Perm | |
| 4 | 826 |
|
9/47 | 29% | 2.10 | RR | Seihoku spring tournament 2024 | Saint Petersburg | |
| 5 | 333 |
|
35/52 | 29% | 3.05 | RR | Agari Spring Tournament 2024 | Moscow | |
| 6 | 178 |
|
89/108 | 0% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 7 | 379 |
|
55/88 | 0% | 3.75 | RR | Money can not buy tenpai | Perm |