Kopylov Dmitry

From Saint Petersburg, Russia

Player page

Internal rating (RR)

Rating date May 12, 2024 (latest changes May 12, 2024).

107 place (207.98).

max_coefficients = (4.60 * 1 + 4 * 1 + 3.75 * 1 + 3.05 * 1) = 15.399999999999999

p1 = (135.14 * 4.05 * 0.14 + 120 * 4.20 * 0.43 + 205.61 * 4 * 1 + 630.43 * 2.10 * 1 + 0) / (4.05 * 0.14 + 4.20 * 0.43 + 4 * 1 + 2.10 * 1 + 1) = 257.4738642231955

p2 = (630.43 * 2.10 * 1 + 205.61 * 4 * 1 + 120 * 4.20 * 0.43 + 135.14 * 4.05 * 0.14) / max_coefficients = 158.47792207792213

score = 257.4738642231955 * 0.5 + 158.47792207792213 * 0.5 = 207.97589315055882

Rating changes

Show

Date Place Points Reason
2024-05-12 85 -> 107 223.33 -> 207.98
2024-05-06 88 -> 85 219.82 -> 223.33

IX Russian Riichi Championship: 57% -> 43%

2024-04-12 92 -> 88 219.68 -> 219.82

Moscow Riichi 2022: 29% -> 14%

2024-03-30 98 -> 92 114.26 -> 219.68

Seihoku spring tournament 2024: 0% -> 100%

2024-03-20 107 -> 98 114.26
2024-03-10 99 -> 107 122.29 -> 114.26
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

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 630 2024-03-30 18/47 100% 2.10 RR Seihoku spring tournament 2024
2 206 2023-09-03 86/108 100% 4.00 RR SPB Riichi Open 2023
3 120 2022-11-06 67/76 43% 4.20 RR IX Russian Riichi Championship
4 135 2022-06-12 97/112 14% 4.05 RR Moscow Riichi 2022