Medvedev Sergei

From Moscow, Russia

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Common russian riichi rating (CRR)

Rating date April 20, 2026 (latest changes April 19, 2026).

99 place (452.77).

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

p1 = (903.23 * 1.80 * 0.14 + 370.79 * 3.75 * 0.43 + 516.13 * 3.10 * 0.71 + 766.67 * 3 * 1 + 450.98 * 2.30 * 1) / (1.80 * 0.14 + 3.75 * 0.43 + 3.10 * 0.71 + 3 * 1 + 2.30 * 1) = 566.0009809357274

p2 = (766.67 * 3 * 1 + 516.13 * 3.10 * 0.71 + 450.98 * 2.30 * 1 + 370.79 * 3.75 * 0.43) / max_coefficients = 339.53712374581943

score = 566.0009809357274 * 0.5 + 339.53712374581943 * 0.5 = 452.76905234077344

Rating changes

Show

all results
Date Place Points Reason
2026-04-19 95 -> 99 452.77
2026-04-16 96 -> 95 452.77
2026-04-13 95 -> 96 454.14 -> 452.77

Moscow Riichi 2024: 57% -> 43%
2026-04-05 96 -> 95 454.14
2026-03-29 97 -> 96 454.14
2026-03-21 96 -> 97 454.14
2026-03-19 94 -> 96 458.53 -> 454.14

"Green Dragon" in the Secret Chamber: 29% -> 14%
2026-03-15 95 -> 94 458.53
2026-03-14 102 -> 95 422.26 -> 458.53

"Furin" club tournament: for the anniversary: 0% -> 100%
2026-03-12 105 -> 102 422.26

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 451 2026-03-14 29/52 100% 2.30 CRR "Furin" club tournament: for the anniversary Moscow
2 767 2026-01-07 8/31 100% 3.00 RR Moscow Open Riichi Marathon 2026 Moscow
3 516 2025-01-07 16/32 71% 3.10 RR Moscow Open Riichi Marathon Moscow
4 371 2024-10-13 57/90 43% 3.75 RR Moscow Riichi 2024 Moscow
5 903 2024-05-19 4/32 14% 1.80 CRR "Green Dragon" in the Secret Chamber Korolyov
6 736 2023-06-11 24/88 0% 3.75 RR Money can not buy tenpai Perm
7 587 2022-11-06 32/76 0% 4.20 RR IX Russian Riichi Championship Perm
8 360 2022-06-12 72/112 0% 4.05 RR Moscow Riichi 2022 Moscow