Medvedev Sergei

From Moscow, Russia

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Common russian riichi rating (CRR)

Rating date Feb. 18, 2026 (latest changes Feb. 16, 2026).

100 place (429.57).

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

p1 = (903.23 * 1.80 * 0.29 + 370.79 * 3.75 * 0.57 + 516.13 * 3.10 * 0.86 + 766.67 * 3 * 1 + 0) / (1.80 * 0.29 + 3.75 * 0.57 + 3.10 * 0.86 + 3 * 1 + 1) = 529.3471562225549

p2 = (766.67 * 3 * 1 + 516.13 * 3.10 * 0.86 + 370.79 * 3.75 * 0.57 + 903.23 * 1.80 * 0.29) / max_coefficients = 329.78929765886284

score = 529.3471562225549 * 0.5 + 329.78929765886284 * 0.5 = 429.5682269407089

Rating changes

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all results
Date Place Points Reason
2026-02-13 99 -> 100 431.90 -> 429.57

Moscow Riichi 2024: 71% -> 57%
2026-02-09 98 -> 99 431.90
2026-02-08 96 -> 98 431.90
2026-02-04 97 -> 96 431.90
2026-02-02 96 -> 97 431.90
2026-01-25 94 -> 96 431.90
2026-01-19 91 -> 94 444.54 -> 431.90

"Green Dragon" in the Secret Chamber: 43% -> 29%
2026-01-14 92 -> 91 444.54
2026-01-12 94 -> 92 444.54
2026-01-07 167 -> 94 302.43 -> 444.54

Moscow Open Riichi Marathon 2026: 0% -> 100%

Moscow Open Riichi Marathon: 100% -> 86%

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 57% 3.75 RR Moscow Riichi 2024 Moscow
4 903 2024-05-19 4/32 29% 1.80 CRR "Green Dragon" in the Secret Chamber Korolyov
5 736 2023-06-11 24/88 0% 3.75 RR Money can not buy tenpai Perm
6 587 2022-11-06 32/76 0% 4.20 RR IX Russian Riichi Championship Perm
7 360 2022-06-12 72/112 0% 4.05 RR Moscow Riichi 2022 Moscow