Kopylov Dmitry

From Saint Petersburg, Russia

Player page

Internal rating (RR)

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

97 place (83.21).

max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 1 + 3.10 * 0.86) = 14.40701

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 = 72.97142155103661

score = 93.44888888888889 * 0.5 + 72.97142155103661 * 0.5 = 83.21015521996276

Rating changes

Show

Date Place Points Reason
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