Kopylov Dmitry

From Saint Petersburg, Russia

Player page

Common russian riichi rating (CRR)

Rating date June 29, 2026 (latest changes June 29, 2026).

253 place (227.32).

max_coefficients = (4.71 * 1 + 3.90 * 1 + 4.10 * 0.86 + 3.45 * 1) = 15.574109999999997

p1 = (978.95 * 3.85 * 0.29 + 123.60 * 3.75 * 0.29 + 423.73 * 3.25 * 0.57 + 342.86 * 1.90 * 0.71 + 0 * 2 * 0.86 + 194.81 * 3.45 * 1 + 54.05 * 3.40 * 1 + 366.67 * 1.70 * 1) / (3.85 * 0.29 + 3.75 * 0.29 + 3.25 * 0.57 + 1.90 * 0.71 + 2 * 0.86 + 3.45 * 1 + 3.40 * 1 + 1.70 * 1) = 251.80034939877598

p2 = (978.95 * 3.85 * 0.29 + 423.73 * 3.25 * 0.57 + 194.81 * 3.45 * 1 + 366.67 * 1.70 * 1) / max_coefficients = 202.8424096144178

score = 251.80034939877598 * 0.5 + 202.8424096144178 * 0.5 = 227.32137950659688

Rating changes

Show

Date Place Points Reason
2026-06-27 254 -> 253 227.32
2026-06-26 254 228.10 -> 227.32

Seihoku spring tournament 2025: 86% -> 71%

2026-06-16 246 -> 254 236.83 -> 228.10

White Wolf Cup: 71% -> 57%

2026-06-15 246 232.92 -> 236.83
2026-06-14 229 -> 246 239.87 -> 232.92

Tonpu-master: 100% -> 86%

2026-06-13 234 -> 229 237.84 -> 239.87

Moscow Riichi 2024: 43% -> 29%

2026-06-04 236 -> 234 237.84
2026-06-02 237 -> 236 237.84
2026-05-31 229 -> 237 237.84
2026-05-25 230 -> 229 237.84

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 367 2026-04-11 20/31 100% 1.70 RR Seihoku spring tournament 2026 Saint Petersburg
2 54 2026-02-23 71/75 100% 3.40 RR White Wolf Cup 2026 Saint Petersburg
3 195 2025-08-31 63/78 100% 3.45 RR SPB Riichi Open 2025 Saint Petersburg
4 0 2025-06-14 19/19 86% 2.00 CRR Tonpu-master Saint Petersburg
5 343 2025-04-26 24/36 71% 1.90 RR Seihoku spring tournament 2025 Saint Petersburg
6 424 2025-02-16 35/60 57% 3.25 RR White Wolf Cup Saint Petersburg
7 124 2024-10-13 79/90 29% 3.75 RR Moscow Riichi 2024 Moscow
8 979 2024-09-01 🥉 3/96 29% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
9 630 2024-03-30 18/47 0% 2.10 RR Seihoku spring tournament 2024 Saint Petersburg
10 206 2023-09-03 86/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
11 435 2023-04-22 14/24 0% 1.40 CRR Fire cup 2023 Saint Petersburg
12 0 2023-02-25 32/32 0% 1.80 CRR Earth cup Saint Petersburg
13 120 2022-11-06 67/76 0% 4.20 RR IX Russian Riichi Championship Perm
14 385 2022-08-27 25/40 0% 1.80 CRR Sun tournament Saint Petersburg
15 135 2022-06-12 97/112 0% 4.05 RR Moscow Riichi 2022 Moscow