Kopylov Dmitry

From Saint Petersburg, Russia

Player page

Internal rating (RR)

Rating date May 20, 2023 (latest changes May 20, 2023).

97 place (88.04).

max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 0.71 + 3.45 * 0.57) = 12.72138

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 = 82.64040536482676

score = 93.44888888888889 * 0.5 + 82.64040536482676 * 0.5 = 88.04464712685783

Rating changes

Show

all results
Date Place Points Reason
2023-05-20 97 86.48 -> 88.04
2023-04-19 97 85.77 -> 86.48
2023-03-28 97 85.05 -> 85.77
2023-03-20 97 83.70 -> 85.05
2023-02-19 97 83.21 -> 83.70
2023-01-28 97 82.47 -> 83.21
2022-12-19 97 82.12 -> 82.47
2022-11-28 98 -> 97 81.31 -> 82.12
2022-11-06 98 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