Melkov Dmitrii
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date May 1, 2025 (latest changes May 1, 2025).
68 place (503.44).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85
p1 = (379.31 * 3.75 * 0.14 + 177.57 * 4 * 0.43 + 962.96 * 2.30 * 0.57 + 333.33 * 3.05 * 0.86 + 826.09 * 2.10 * 0.86 + 579.44 * 4.60 * 1 + 677.97 * 3.25 * 1 + 171.43 * 1.90 * 1) / (3.75 * 0.14 + 4 * 0.43 + 2.30 * 0.57 + 3.05 * 0.86 + 2.10 * 0.86 + 4.60 * 1 + 3.25 * 1 + 1.90 * 1) = 526.045544590198
p2 = (579.44 * 4.60 * 1 + 677.97 * 3.25 * 1 + 826.09 * 2.10 * 0.86 + 962.96 * 2.30 * 0.57) / max_coefficients = 480.8353312302839
score = 526.045544590198 * 0.5 + 480.8353312302839 * 0.5 = 503.4404379102409
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-04-26 | 62 -> 68 | 524.72 -> 503.44 |
Seihoku spring tournament 2025: 0% -> 100% |
| 2025-04-22 | 63 -> 62 | 524.72 | |
| 2025-04-13 | 62 -> 63 | 524.72 | |
| 2025-04-11 | 62 | 521.63 -> 524.72 |
Money can not buy tenpai: 29% -> 14% |
| 2025-03-30 | 61 -> 62 | 531.82 -> 521.63 |
Seihoku spring tournament 2024: 100% -> 86% |
| 2025-03-10 | 63 -> 61 | 528.84 -> 531.82 |
Agari Spring Tournament 2024: 100% -> 86% |
| 2025-03-05 | 61 -> 63 | 542.61 -> 528.84 |
Finding Dora: 71% -> 57% |
| 2025-03-03 | 63 -> 61 | 536.41 -> 542.61 |
SPB Riichi Open 2023: 57% -> 43% |
| 2025-03-02 | 61 -> 63 | 536.41 | |
| 2025-02-25 | 61 | 537.03 -> 536.41 |
Earth cup: 14% -> 0% |
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 | 100% | 4.60 | RR | X Russian Championship | Perm |
| 4 | 826 |
|
9/47 | 86% | 2.10 | RR | Seihoku spring tournament 2024 | Saint Petersburg |
| 5 | 333 |
|
35/52 | 86% | 3.05 | RR | Agari Spring Tournament 2024 | Moscow |
| 6 | 963 |
|
2/28 | 57% | 2.30 | CRR | Finding Dora | Yekaterinburg |
| 7 | 178 |
|
89/108 | 43% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg |
| 8 | 379 |
|
55/88 | 14% | 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 |