Kopylov Dmitry

From Saint Petersburg, Russia

Player page

Internal rating (RR)

Rating date Dec. 22, 2024 (latest changes Dec. 11, 2024).

75 place (420.40).

max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85

p1 = (205.61 * 4 * 0.71 + 630.43 * 2.10 * 1 + 978.95 * 3.85 * 1 + 123.60 * 3.75 * 1 + 0) / (4 * 0.71 + 2.10 * 1 + 3.85 * 1 + 3.75 * 1 + 1) = 453.17617207092906

p2 = (978.95 * 3.85 * 1 + 630.43 * 2.10 * 1 + 205.61 * 4 * 0.71 + 123.60 * 3.75 * 1) / max_coefficients = 387.6214511041009

score = 453.17617207092906 * 0.5 + 387.6214511041009 * 0.5 = 420.39881158751496

Rating changes

Show

Date Place Points Reason
2024-12-11 77 -> 75 420.40
2024-11-06 74 -> 77 430.02 -> 420.40

IX Russian Riichi Championship: 14% -> 0%

2024-11-03 78 -> 74 428.18 -> 430.02

SPB Riichi Open 2023: 86% -> 71%

2024-10-13 64 -> 78 456.33 -> 428.18

Moscow Riichi 2024: 0% -> 100%

2024-09-06 67 -> 64 447.91 -> 456.33

IX Russian Riichi Championship: 29% -> 14%

2024-09-03 71 -> 67 437.53 -> 447.91

SPB Riichi Open 2023: 100% -> 86%

2024-09-01 119 -> 71 197.98 -> 437.53

SPB Riichi Open 2024: 0% -> 100%

2024-08-11 120 -> 119 197.19 -> 197.98
2024-08-04 116 -> 120 200.18 -> 197.19
2024-07-14 111 -> 116 200.18

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 124 2024-10-13 79/90 100% 3.75 RR Moscow Riichi 2024
2 979 2024-09-01 3/96 100% 3.85 RR SPB Riichi Open 2024
3 630 2024-03-30 18/47 100% 2.10 RR Seihoku spring tournament 2024
4 206 2023-09-03 86/108 71% 4.00 RR SPB Riichi Open 2023
5 120 2022-11-06 67/76 0% 4.20 RR IX Russian Riichi Championship
6 135 2022-06-12 97/112 0% 4.05 RR Moscow Riichi 2022