Kopylov Dmitry

From Saint Petersburg, Russia

Player page

Internal rating (RR)

Rating date July 28, 2023 (latest changes July 28, 2023).

116 place (81.85).

max_coefficients = (4.20 * 1 + 3.75 * 1 + 4.05 * 0.86 + 3.50 * 0.57) = 13.421155

p1 = (135.14 * 4.05 * 0.86 + 120 * 4.20 * 1 + 0 + 0 + 0) / (4.05 * 0.86 + 4.20 * 1 + 1 + 1 + 1) = 91.1879624280368

p2 = (120 * 4.20 * 1 + 135.14 * 4.05 * 0.86) / max_coefficients = 72.50419207586827

score = 91.1879624280368 * 0.5 + 72.50419207586827 * 0.5 = 81.84607725195254

Rating changes

Show

all results
Date Place Points Reason
2023-07-28 117 -> 116 81.85
2023-07-20 118 -> 117 80.54 -> 81.85
2023-06-19 118 80.54

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 120 2022-11-06 67/76 100% 4.20 RR IX Russian Riichi Championship Perm
2 135 2022-06-12 97/112 86% 4.05 RR Moscow Riichi 2022 Moscow