Kopylov Dmitry

From Saint Petersburg, Russia

Player page

Common russian riichi rating (CRR)

Rating date May 20, 2025 (latest changes May 19, 2025).

84 place (471.27).

max_coefficients = (4.60 * 0.86 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.19266

p1 = (205.61 * 4 * 0.29 + 630.43 * 2.10 * 0.86 + 978.95 * 3.85 * 1 + 123.60 * 3.75 * 1 + 423.73 * 3.25 * 1 + 342.86 * 1.90 * 1) / (4 * 0.29 + 2.10 * 0.86 + 3.85 * 1 + 3.75 * 1 + 3.25 * 1 + 1.90 * 1) = 486.25635725123317

p2 = (978.95 * 3.85 * 1 + 423.73 * 3.25 * 1 + 630.43 * 2.10 * 0.86 + 342.86 * 1.90 * 1) / max_coefficients = 456.28810228096984

score = 486.25635725123317 * 0.5 + 456.28810228096984 * 0.5 = 471.27222976610153

Rating changes

Show

all results
Date Place Points Reason
2025-05-12 86 -> 84 461.81 -> 471.27
2025-05-10 87 -> 86 461.81
2025-05-03 86 -> 87 456.88 -> 461.81

SPB Riichi Open 2023: 43% -> 29%
2025-04-26 85 -> 86 459.78 -> 456.88

Seihoku spring tournament 2025: 0% -> 100%
2025-04-22 85 459.37 -> 459.78

Fire cup 2023: 14% -> 0%
2025-03-30 82 -> 85 466.73 -> 459.37

Seihoku spring tournament 2024: 100% -> 86%
2025-03-10 83 -> 82 466.73
2025-03-03 86 -> 83 461.56 -> 466.73

SPB Riichi Open 2023: 57% -> 43%
2025-03-02 82 -> 86 461.56
2025-02-27 83 -> 82 461.56

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 343 2025-04-26 24/36 100% 1.90 RR Seihoku spring tournament 2025 Saint Petersburg
2 424 2025-02-16 35/60 100% 3.25 RR White Wolf Cup Saint Petersburg
3 124 2024-10-13 79/90 100% 3.75 RR Moscow Riichi 2024 Moscow
4 979 2024-09-01 3/96 100% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
5 630 2024-03-30 18/47 86% 2.10 RR Seihoku spring tournament 2024 Saint Petersburg
6 206 2023-09-03 86/108 29% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
7 435 2023-04-22 14/24 0% 1.40 CRR Fire cup 2023 Saint Petersburg
8 0 2023-02-25 32/32 0% 1.80 CRR Earth cup Saint Petersburg
9 120 2022-11-06 67/76 0% 4.20 RR IX Russian Riichi Championship Perm
10 385 2022-08-27 25/40 0% 1.80 CRR Sun tournament Saint Petersburg
11 135 2022-06-12 97/112 0% 4.05 RR Moscow Riichi 2022 Moscow