Melkov Dmitrii

From Saint Petersburg, Russia

Player page

Internal rating (RR)

Rating date Aug. 2, 2025 (latest changes July 30, 2025).

91 place (440.51).

max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.35

p1 = (177.57 * 4 * 0.14 + 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) / (4 * 0.14 + 3.05 * 0.57 + 2.10 * 0.57 + 4.60 * 0.71 + 3.25 * 1 + 1.90 * 1) = 511.01539821038995

p2 = (677.97 * 3.25 * 1 + 579.44 * 4.60 * 0.71 + 826.09 * 2.10 * 0.57 + 333.33 * 3.05 * 0.57) / max_coefficients = 369.9980456026059

score = 511.01539821038995 * 0.5 + 369.9980456026059 * 0.5 = 440.5067219064979

Rating changes

Show

all results
Date Place Points Reason
2025-07-30 87 -> 91 452.44 -> 440.51

Seihoku spring tournament 2024: 71% -> 57%
2025-07-13 86 -> 87 452.44
2025-07-12 82 -> 86 462.54 -> 452.44

X Russian Championship: 86% -> 71%
2025-07-10 80 -> 82 464.11 -> 462.54

Agari Spring Tournament 2024: 71% -> 57%
2025-07-03 84 -> 80 457.17 -> 464.11

SPB Riichi Open 2023: 29% -> 14%
2025-06-15 77 -> 84 463.28 -> 457.17
2025-06-11 80 -> 77 461.00 -> 463.28

Money can not buy tenpai: 14% -> 0%
2025-06-09 83 -> 80 461.00
2025-06-08 82 -> 83 461.00
2025-05-30 73 -> 82 472.50 -> 461.00

Seihoku spring tournament 2024: 86% -> 71%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 171 2025-04-26 30/36 100% 1.90 RR Seihoku spring tournament 2025 Saint Petersburg
2 678 2025-02-16 20/60 100% 3.25 RR White Wolf Cup Saint Petersburg
3 579 2024-05-12 46/108 71% 4.60 RR X Russian Championship Perm
4 826 2024-03-30 9/47 57% 2.10 RR Seihoku spring tournament 2024 Saint Petersburg
5 333 2024-03-10 35/52 57% 3.05 RR Agari Spring Tournament 2024 Moscow
6 178 2023-09-03 89/108 14% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
7 379 2023-06-11 55/88 0% 3.75 RR Money can not buy tenpai Perm