Melkov Dmitrii
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date Nov. 5, 2025 (latest changes Nov. 5, 2025).
102 place (426.01).
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 * 0.43 + 826.09 * 2.10 * 0.43 + 579.44 * 4.60 * 0.57 + 677.97 * 3.25 * 1 + 171.43 * 1.90 * 1) / (3.05 * 0.43 + 2.10 * 0.43 + 4.60 * 0.57 + 3.25 * 1 + 1.90 * 1) = 523.8865861584482
p2 = (677.97 * 3.25 * 1 + 579.44 * 4.60 * 0.57 + 826.09 * 2.10 * 0.43 + 333.33 * 3.05 * 0.43) / max_coefficients = 328.1391304347826
score = 523.8865861584482 * 0.5 + 328.1391304347826 * 0.5 = 426.0128582966154
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-11-04 | 97 -> 102 | 440.47 -> 426.01 | |
| 2025-11-01 | 98 -> 97 | 439.87 -> 440.47 | |
| 2025-10-13 | 99 -> 98 | 434.67 -> 439.87 | |
| 2025-10-09 | 100 -> 99 | 434.67 | |
| 2025-09-30 | 97 -> 100 | 447.11 -> 434.67 |
Seihoku spring tournament 2024: 57% -> 43% |
| 2025-09-12 | 95 -> 97 | 460.95 -> 447.11 |
X Russian Championship: 71% -> 57% |
| 2025-09-10 | 95 | 461.87 -> 460.95 |
Agari Spring Tournament 2024: 57% -> 43% |
| 2025-09-05 | 94 -> 95 | 469.39 -> 461.87 |
Finding Dora: 29% -> 14% |
| 2025-09-03 | 96 -> 94 | 460.91 -> 469.39 |
SPB Riichi Open 2023: 14% -> 0% |
| 2025-09-01 | 97 -> 96 | 455.82 -> 460.91 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | 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 | 57% | 4.60 | RR | X Russian Championship | Perm | |
| 4 | 826 |
|
9/47 | 43% | 2.10 | RR | Seihoku spring tournament 2024 | Saint Petersburg | |
| 5 | 333 |
|
35/52 | 43% | 3.05 | RR | Agari Spring Tournament 2024 | Moscow | |
| 6 | 963 |
|
🥈 | 2/28 | 0% | 2.30 | CRR | Finding Dora | Yekaterinburg |
| 7 | 178 |
|
89/108 | 0% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 8 | 379 |
|
55/88 | 0% | 3.75 | RR | Money can not buy tenpai | Perm | |
| 9 | 645 |
|
12/32 | 0% | 1.80 | CRR | Earth cup | Saint Petersburg | |
| 10 | 872 |
|
6/40 | 0% | 1.80 | CRR | Sun tournament | Saint Petersburg | |
| 11 | 947 |
|
🥈 | 2/20 | 0% | 1.30 | CRR | Mahjong tournament at the Intellectual Games Festival 2019 | Samara |
| 12 | 400 |
|
10/16 | 0% | 1.20 | CRR | Tournament | Samara |