Kopylov Dmitry

From Saint Petersburg, Russia

Player page

Internal rating (RR)

Rating date May 6, 2023 (latest changes May 6, 2023).

98 place (86.48).

max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 0.86 + 3.45 * 0.57) = 13.22118

p1 = (135.14 * 4.05 * 1 + 120 * 4.20 * 1 + 0 + 0 + 0) / (4.05 * 1 + 4.20 * 1 + 1 + 1 + 1) = 93.44888888888889

p2 = (135.14 * 4.05 * 1 + 120 * 4.20 * 1) / max_coefficients = 79.51635179310772

score = 93.44888888888889 * 0.5 + 79.51635179310772 * 0.5 = 86.4826203409983

Rating changes

Show

all results
Date Place Points Reason
2023-04-19 98 85.77 -> 86.48
2023-03-28 98 85.05 -> 85.77
2023-03-20 98 83.70 -> 85.05
2023-02-19 98 83.21 -> 83.70
2023-01-28 98 82.47 -> 83.21
2022-12-19 98 82.12 -> 82.47
2022-11-28 99 -> 98 81.31 -> 82.12
2022-11-06 99 81.31

IX Russian Riichi Championship: 0% -> 100%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 120 2022-11-06 67/76 100% 4.20 RR IX Russian Riichi Championship
2 135 2022-06-12 97/112 100% 4.05 RR Moscow Riichi 2022