Melkov Dmitrii
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date March 6, 2024 (latest changes March 6, 2024).
51 place (447.97).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 2.90 * 1 + 4.20 * 0.57) = 13.04988
p1 = (871.79 * 1.80 * 0.43 + 645.16 * 1.80 * 0.86 + 962.96 * 2.30 * 1 + 379.31 * 3.75 * 1 + 177.57 * 4 * 1) / (1.80 * 0.43 + 1.80 * 0.86 + 2.30 * 1 + 3.75 * 1 + 4 * 1) = 486.51597426776857
p2 = (962.96 * 2.30 * 1 + 379.31 * 3.75 * 1 + 645.16 * 1.80 * 0.86 + 177.57 * 4 * 1) / max_coefficients = 409.4167915720298
score = 486.51597426776857 * 0.5 + 409.4167915720298 * 0.5 = 447.96638291989916
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-03-06 | 52 -> 51 | 438.97 -> 447.97 | |
| 2024-02-27 | 48 -> 52 | 449.72 -> 438.97 |
Sun tournament: 57% -> 43% |
| 2024-02-25 | 40 -> 48 | 457.30 -> 449.72 |
Earth cup: 100% -> 86% |
| 2024-02-18 | 41 -> 40 | 457.30 | |
| 2024-02-12 | 42 -> 41 | 457.30 | |
| 2024-01-20 | 44 -> 42 | 457.30 | |
| 2024-01-06 | 48 -> 44 | 448.52 -> 457.30 | |
| 2023-12-27 | 41 -> 48 | 460.05 -> 448.52 |
Sun tournament: 71% -> 57% |
| 2023-12-19 | 42 -> 41 | 460.05 | |
| 2023-12-12 | 45 -> 42 | 460.05 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 963 |
|
2/28 | 100% | 2.30 | CRR | Finding Dora |
| 2 | 178 |
|
89/108 | 100% | 4.00 | RR | SPB Riichi Open 2023 |
| 3 | 379 |
|
55/88 | 100% | 3.75 | RR | Money can not buy tenpai |
| 4 | 645 |
|
12/32 | 86% | 1.80 | CRR | Earth cup |
| 5 | 872 |
|
6/40 | 43% | 1.80 | CRR | Sun tournament |
| 6 | 947 |
|
2/20 | 0% | 1.30 | CRR | Mahjong tournament at the Intellectual Games Festival 2019 |
| 7 | 400 |
|
10/16 | 0% | 1.20 | CRR | Tournament |