Kopylov Dmitry

From Saint Petersburg, Russia

Player page

Internal rating (RR)

Rating date Dec. 12, 2023 (latest changes Dec. 12, 2023).

112 place (122.57).

max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.86 + 4.05 * 0.43) = 13.085650000000001

p1 = (135.14 * 4.05 * 0.43 + 120 * 4.20 * 0.86 + 205.61 * 4 * 1 + 0 + 0) / (4.05 * 0.43 + 4.20 * 0.86 + 4 * 1 + 1 + 1) = 131.3537379859117

p2 = (205.61 * 4 * 1 + 120 * 4.20 * 0.86 + 135.14 * 4.05 * 0.43) / max_coefficients = 113.78724022115827

score = 131.3537379859117 * 0.5 + 113.78724022115827 * 0.5 = 122.57048910353498

Rating changes

Show

all results
Date Place Points Reason
2023-12-12 112 123.11 -> 122.57

Moscow Riichi 2022: 57% -> 43%
2023-11-28 122 -> 112 123.11
2023-11-06 126 -> 122 122.95 -> 123.11

IX Russian Riichi Championship: 100% -> 86%
2023-10-12 126 123.43 -> 122.95

Moscow Riichi 2022: 71% -> 57%
2023-09-28 127 -> 126 123.43
2023-09-20 129 -> 127 123.43
2023-09-06 130 -> 129 123.43
2023-09-03 116 -> 130 79.18 -> 123.43

SPB Riichi Open 2023: 0% -> 100%
2023-08-19 117 -> 116 79.18
2023-08-12 116 -> 117 81.85 -> 79.18

Moscow Riichi 2022: 86% -> 71%

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 86% 4.20 RR IX Russian Riichi Championship
3 135 2022-06-12 97/112 43% 4.05 RR Moscow Riichi 2022