Kopylov Dmitry

From Saint Petersburg, Russia

Player page

Common russian riichi rating (CRR)

Rating date Jan. 25, 2026 (latest changes Jan. 25, 2026).

153 place (335.36).

max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95

p1 = (630.43 * 2.10 * 0.29 + 978.95 * 3.85 * 0.57 + 123.60 * 3.75 * 0.71 + 423.73 * 3.25 * 1 + 342.86 * 1.90 * 1 + 0 * 2 * 1 + 194.81 * 3.45 * 1) / (2.10 * 0.29 + 3.85 * 0.57 + 3.75 * 0.71 + 3.25 * 1 + 1.90 * 1 + 2 * 1 + 3.45 * 1) = 346.0226507659148

p2 = (978.95 * 3.85 * 0.57 + 423.73 * 3.25 * 1 + 194.81 * 3.45 * 1 + 342.86 * 1.90 * 1) / max_coefficients = 324.69632107023415

score = 346.0226507659148 * 0.5 + 324.69632107023415 * 0.5 = 335.3594859180745

Rating changes

Show

all results
Date Place Points Reason
2026-01-25 152 -> 153 335.36
2026-01-12 154 -> 152 335.36
2026-01-07 149 -> 154 335.36
2026-01-03 148 -> 149 335.36
2026-01-01 133 -> 148 363.84 -> 335.36

SPB Riichi Open 2024: 71% -> 57%
2025-12-29 134 -> 133 363.84
2025-12-27 131 -> 134 363.84
2025-12-13 131 360.05 -> 363.84

Moscow Riichi 2024: 86% -> 71%
2025-12-09 132 -> 131 360.05
2025-12-07 127 -> 132 360.05

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 195 2025-08-31 63/78 100% 3.45 RR SPB Riichi Open 2025 Saint Petersburg
2 0 2025-06-14 19/19 100% 2.00 CRR Tonpu-master Saint Petersburg
3 343 2025-04-26 24/36 100% 1.90 RR Seihoku spring tournament 2025 Saint Petersburg
4 424 2025-02-16 35/60 100% 3.25 RR White Wolf Cup Saint Petersburg
5 124 2024-10-13 79/90 71% 3.75 RR Moscow Riichi 2024 Moscow
6 979 2024-09-01 🥉 3/96 57% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
7 630 2024-03-30 18/47 29% 2.10 RR Seihoku spring tournament 2024 Saint Petersburg
8 206 2023-09-03 86/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
9 435 2023-04-22 14/24 0% 1.40 CRR Fire cup 2023 Saint Petersburg
10 0 2023-02-25 32/32 0% 1.80 CRR Earth cup Saint Petersburg
11 120 2022-11-06 67/76 0% 4.20 RR IX Russian Riichi Championship Perm
12 385 2022-08-27 25/40 0% 1.80 CRR Sun tournament Saint Petersburg
13 135 2022-06-12 97/112 0% 4.05 RR Moscow Riichi 2022 Moscow