Melkov Dmitrii
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date Sept. 4, 2025 (latest changes Sept. 3, 2025).
94 place (469.39).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8
p1 = (962.96 * 2.30 * 0.29 + 333.33 * 3.05 * 0.57 + 826.09 * 2.10 * 0.57 + 579.44 * 4.60 * 0.71 + 677.97 * 3.25 * 1 + 171.43 * 1.90 * 1) / (2.30 * 0.29 + 3.05 * 0.57 + 2.10 * 0.57 + 4.60 * 0.71 + 3.25 * 1 + 1.90 * 1) = 551.5263052942936
p2 = (677.97 * 3.25 * 1 + 579.44 * 4.60 * 0.71 + 826.09 * 2.10 * 0.57 + 962.96 * 2.30 * 0.29) / max_coefficients = 387.25135135135133
score = 551.5263052942936 * 0.5 + 387.25135135135133 * 0.5 = 469.38882832282246
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-09-03 | 96 -> 94 | 460.91 -> 469.39 |
SPB Riichi Open 2023: 14% -> 0% |
| 2025-09-01 | 97 -> 96 | 455.82 -> 460.91 | |
| 2025-08-31 | 94 -> 97 | 455.82 | |
| 2025-08-09 | 95 -> 94 | 455.82 | |
| 2025-08-04 | 95 | 453.97 -> 455.82 | |
| 2025-08-03 | 94 -> 95 | 453.97 | |
| 2025-07-30 | 88 -> 94 | 465.44 -> 453.97 |
Seihoku spring tournament 2024: 71% -> 57% |
| 2025-07-26 | 86 -> 88 | 465.44 | |
| 2025-07-12 | 81 -> 86 | 474.88 -> 465.44 |
X Russian Championship: 86% -> 71% |
| 2025-07-10 | 82 -> 81 | 474.60 -> 474.88 |
Agari Spring Tournament 2024: 71% -> 57% |
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 | 71% | 4.60 | RR | X Russian Championship | Perm | |
| 4 | 826 |
|
9/47 | 57% | 2.10 | RR | Seihoku spring tournament 2024 | Saint Petersburg | |
| 5 | 333 |
|
35/52 | 57% | 3.05 | RR | Agari Spring Tournament 2024 | Moscow | |
| 6 | 963 |
|
🥈 | 2/28 | 29% | 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 |