Melkov Dmitrii
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date Jan. 5, 2024 (latest changes Jan. 5, 2024).
48 place (448.52).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.86 + 2.90 * 1) = 14.249820000000001
p1 = (871.79 * 1.80 * 0.57 + 645.16 * 1.80 * 1 + 379.31 * 3.75 * 1 + 177.57 * 4 * 1 + 962.96 * 2.30 * 1) / (1.80 * 0.57 + 1.80 * 1 + 3.75 * 1 + 4 * 1 + 2.30 * 1) = 497.37469833490167
p2 = (962.96 * 2.30 * 1 + 379.31 * 3.75 * 1 + 645.16 * 1.80 * 1 + 871.79 * 1.80 * 0.57) / max_coefficients = 399.66610104548687
score = 497.37469833490167 * 0.5 + 399.66610104548687 * 0.5 = 448.52039969019427
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 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 | |
| 2023-11-28 | 46 -> 45 | 460.05 | |
| 2023-11-26 | 44 -> 46 | 461.52 -> 460.05 | |
| 2023-11-20 | 47 -> 44 | 461.52 | |
| 2023-11-06 | 49 -> 47 | 453.01 -> 461.52 | |
| 2023-11-05 | 94 -> 49 | 336.16 -> 453.01 |
Finding Dora: 0% -> 100% |
| 2023-10-27 | 89 -> 94 | 349.06 -> 336.16 |
Sun tournament: 86% -> 71% |
| 2023-10-22 | 86 -> 89 | 349.06 |
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 | 100% | 1.80 | CRR | Earth cup |
| 5 | 872 |
|
6/40 | 57% | 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 |