Kopylov Dmitry

From Saint Petersburg, Russia

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Internal rating (RR)

Rating date June 14, 2026 (latest changes June 13, 2026).

159 place (257.17).

max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.45 * 1 + 3.40 * 1) = 14.85

p1 = (978.95 * 3.85 * 0.29 + 123.60 * 3.75 * 0.29 + 423.73 * 3.25 * 0.71 + 342.86 * 1.90 * 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 * 0.71 + 1.90 * 0.86 + 3.45 * 1 + 3.40 * 1 + 1.70 * 1) = 288.34693075623574

p2 = (978.95 * 3.85 * 0.29 + 423.73 * 3.25 * 0.71 + 194.81 * 3.45 * 1 + 366.67 * 1.70 * 1) / max_coefficients = 225.98518518518517

score = 288.34693075623574 * 0.5 + 225.98518518518517 * 0.5 = 257.1660579707104

Rating changes

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all results
Date Place Points Reason
2026-06-13 162 -> 159 254.26 -> 257.17

Moscow Riichi 2024: 43% -> 29%
2026-06-09 164 -> 162 254.26
2026-06-04 166 -> 164 254.26
2026-06-02 167 -> 166 254.26
2026-05-26 166 -> 167 254.26
2026-05-17 164 -> 166 254.26
2026-05-12 172 -> 164 254.26
2026-05-03 169 -> 172 253.51 -> 254.26
2026-05-01 158 -> 169 283.68 -> 253.51

SPB Riichi Open 2024: 43% -> 29%
2026-04-26 156 -> 158 284.92 -> 283.68

Seihoku spring tournament 2025: 100% -> 86%

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
4 343 2025-04-26 24/36 86% 1.90 RR Seihoku spring tournament 2025 Saint Petersburg
5 424 2025-02-16 35/60 71% 3.25 RR White Wolf Cup Saint Petersburg
6 124 2024-10-13 79/90 29% 3.75 RR Moscow Riichi 2024 Moscow
7 979 2024-09-01 🥉 3/96 29% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
8 630 2024-03-30 18/47 0% 2.10 RR Seihoku spring tournament 2024 Saint Petersburg
9 206 2023-09-03 86/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
10 120 2022-11-06 67/76 0% 4.20 RR IX Russian Riichi Championship Perm
11 135 2022-06-12 97/112 0% 4.05 RR Moscow Riichi 2022 Moscow