Kopylov Dmitry

From Saint Petersburg, Russia

Player page

Internal rating (RR)

Rating date March 6, 2024 (latest changes March 6, 2024).

99 place (122.29).

max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.57 + 4.05 * 0.29) = 11.306965

p1 = (135.14 * 4.05 * 0.29 + 120 * 4.20 * 0.57 + 205.61 * 4 * 1 + 0 + 0) / (4.05 * 0.29 + 4.20 * 0.57 + 4 * 1 + 1 + 1) = 132.5504488088007

p2 = (205.61 * 4 * 1 + 120 * 4.20 * 0.57 + 135.14 * 4.05 * 0.29) / max_coefficients = 112.0353693497769

score = 132.5504488088007 * 0.5 + 112.0353693497769 * 0.5 = 122.29290907928879

Rating changes

Show

Date Place Points Reason
2024-03-06 98 -> 99 122.12 -> 122.29

IX Russian Riichi Championship: 71% -> 57%

2024-02-12 98 122.74 -> 122.12

Moscow Riichi 2022: 43% -> 29%

2024-01-06 98 122.57 -> 122.74

IX Russian Riichi Championship: 86% -> 71%

2023-12-19 111 -> 98 122.57
2023-12-12 111 123.11 -> 122.57

Moscow Riichi 2022: 57% -> 43%

2023-11-28 121 -> 111 123.11
2023-11-06 125 -> 121 122.95 -> 123.11

IX Russian Riichi Championship: 100% -> 86%

2023-10-12 125 123.43 -> 122.95

Moscow Riichi 2022: 71% -> 57%

2023-09-28 126 -> 125 123.43
2023-09-20 128 -> 126 123.43

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 206 2023-09-03 86/108 100% 4.00 RR SPB Riichi Open 2023
2 120 2022-11-06 67/76 57% 4.20 RR IX Russian Riichi Championship
3 135 2022-06-12 97/112 29% 4.05 RR Moscow Riichi 2022