Melkov Dmitrii
From Saint Petersburg, Russia
Internal rating (RR)
Rating date Jan. 6, 2024 (latest changes Jan. 6, 2024).
89 place (184.60).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.71 + 4.05 * 0.43) = 12.485890000000001
p1 = (379.31 * 3.75 * 1 + 177.57 * 4 * 1 + 0 + 0 + 0) / (3.75 * 1 + 4 * 1 + 1 + 1 + 1) = 198.38976744186047
p2 = (379.31 * 3.75 * 1 + 177.57 * 4 * 1) / max_coefficients = 170.80800807952014
score = 198.38976744186047 * 0.5 + 170.80800807952014 * 0.5 = 184.5988877606903
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2024-01-06 | 89 | 180.68 -> 184.60 | |
2023-12-19 | 99 -> 89 | 180.68 | |
2023-12-12 | 103 -> 99 | 177.24 -> 180.68 | |
2023-11-28 | 109 -> 103 | 177.24 | |
2023-11-20 | 111 -> 109 | 177.24 | |
2023-11-06 | 115 -> 111 | 173.95 -> 177.24 | |
2023-10-19 | 117 -> 115 | 173.95 | |
2023-10-12 | 118 -> 117 | 171.04 -> 173.95 | |
2023-09-28 | 119 -> 118 | 171.04 | |
2023-09-06 | 120 -> 119 | 171.04 |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 178 |
|
89/108 | 100% | 4.00 | RR | SPB Riichi Open 2023 |
2 | 379 |
|
55/88 | 100% | 3.75 | RR | Money can not buy tenpai |