Kopylov Dmitry

From Saint Petersburg, Russia

Player page

Common russian riichi rating (CRR)

Rating date July 30, 2025 (latest changes July 30, 2025).

102 place (429.41).

max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.35

p1 = (205.61 * 4 * 0.14 + 630.43 * 2.10 * 0.57 + 978.95 * 3.85 * 1 + 123.60 * 3.75 * 1 + 423.73 * 3.25 * 1 + 342.86 * 1.90 * 1 + 0 * 2 * 1) / (4 * 0.14 + 2.10 * 0.57 + 3.85 * 1 + 3.75 * 1 + 3.25 * 1 + 1.90 * 1 + 2 * 1) = 431.8598629425586

p2 = (978.95 * 3.85 * 1 + 423.73 * 3.25 * 1 + 630.43 * 2.10 * 0.57 + 342.86 * 1.90 * 1) / max_coefficients = 426.9693811074918

score = 431.8598629425586 * 0.5 + 426.9693811074918 * 0.5 = 429.4146220250252

Rating changes

Show

all results
Date Place Points Reason
2025-07-30 101 -> 102 437.35 -> 429.41

Seihoku spring tournament 2024: 71% -> 57%
2025-07-26 99 -> 101 437.35
2025-07-19 100 -> 99 437.35
2025-07-13 96 -> 100 437.35
2025-07-12 97 -> 96 433.24 -> 437.35
2025-07-03 99 -> 97 429.47 -> 433.24

SPB Riichi Open 2023: 29% -> 14%
2025-06-15 94 -> 99 435.85 -> 429.47
2025-06-14 84 -> 94 463.65 -> 435.85

Tonpu-master: 0% -> 100%
2025-06-09 87 -> 84 463.65
2025-05-30 83 -> 87 471.27 -> 463.65

Seihoku spring tournament 2024: 86% -> 71%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 0 2025-06-14 19/19 100% 2.00 CRR Tonpu-master Saint Petersburg
2 343 2025-04-26 24/36 100% 1.90 RR Seihoku spring tournament 2025 Saint Petersburg
3 424 2025-02-16 35/60 100% 3.25 RR White Wolf Cup Saint Petersburg
4 124 2024-10-13 79/90 100% 3.75 RR Moscow Riichi 2024 Moscow
5 979 2024-09-01 🥉 3/96 100% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
6 630 2024-03-30 18/47 57% 2.10 RR Seihoku spring tournament 2024 Saint Petersburg
7 206 2023-09-03 86/108 14% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
8 435 2023-04-22 14/24 0% 1.40 CRR Fire cup 2023 Saint Petersburg
9 0 2023-02-25 32/32 0% 1.80 CRR Earth cup Saint Petersburg
10 120 2022-11-06 67/76 0% 4.20 RR IX Russian Riichi Championship Perm
11 385 2022-08-27 25/40 0% 1.80 CRR Sun tournament Saint Petersburg
12 135 2022-06-12 97/112 0% 4.05 RR Moscow Riichi 2022 Moscow