Medvedev Sergei

From Moscow, Russia

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Internal rating (RR)

Rating date Jan. 28, 2026 (latest changes Jan. 26, 2026).

108 place (381.66).

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

p1 = (370.79 * 3.75 * 0.71 + 516.13 * 3.10 * 0.86 + 766.67 * 3 * 1 + 0 + 0) / (3.75 * 0.71 + 3.10 * 0.86 + 3 * 1 + 1 + 1) = 451.30850692773106

p2 = (766.67 * 3 * 1 + 516.13 * 3.10 * 0.86 + 370.79 * 3.75 * 0.71) / max_coefficients = 312.0107023411371

score = 451.30850692773106 * 0.5 + 312.0107023411371 * 0.5 = 381.6596046344341

Rating changes

Show

all results
Date Place Points Reason
2026-01-26 109 -> 108 381.66
2026-01-25 106 -> 109 381.66
2026-01-14 108 -> 106 381.66
2026-01-12 109 -> 108 381.66
2026-01-07 173 -> 109 234.43 -> 381.66

Moscow Open Riichi Marathon: 100% -> 86%

Moscow Open Riichi Marathon 2026: 0% -> 100%
2025-12-13 171 -> 173 243.24 -> 234.43

Moscow Riichi 2024: 86% -> 71%
2025-12-07 166 -> 171 243.24
2025-11-12 167 -> 166 243.24
2025-11-04 161 -> 167 247.48 -> 243.24
2025-11-01 162 -> 161 247.14 -> 247.48

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 767 2026-01-07 8/31 100% 3.00 RR Moscow Open Riichi Marathon 2026 Moscow
2 516 2025-01-07 16/32 86% 3.10 RR Moscow Open Riichi Marathon Moscow
3 371 2024-10-13 57/90 71% 3.75 RR Moscow Riichi 2024 Moscow
4 736 2023-06-11 24/88 0% 3.75 RR Money can not buy tenpai Perm
5 587 2022-11-06 32/76 0% 4.20 RR IX Russian Riichi Championship Perm
6 360 2022-06-12 72/112 0% 4.05 RR Moscow Riichi 2022 Moscow