Kopylov Dmitry

From Saint Petersburg, Russia

Player page

Internal rating (RR)

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

97 place (85.77).

max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 0.86 + 3.10 * 0.71) = 13.46418

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 = 78.08124965649597

score = 93.44888888888889 * 0.5 + 78.08124965649597 * 0.5 = 85.76506927269243

Rating changes

Show

Date Place Points Reason
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