Medvedev Sergei

From Moscow, Russia

Player page

Common russian riichi rating (CRR)

Rating date July 24, 2026 (latest changes July 23, 2026).

97 place (474.16).

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

p1 = (370.79 * 3.75 * 0.29 + 516.13 * 3.10 * 0.43 + 766.67 * 3 * 1 + 450.98 * 2.30 * 1 + 489.51 * 4.71 * 1) / (3.75 * 0.29 + 3.10 * 0.43 + 3 * 1 + 2.30 * 1 + 4.71 * 1) = 541.9686568168422

p2 = (489.51 * 4.71 * 1 + 766.67 * 3 * 1 + 450.98 * 2.30 * 1 + 516.13 * 3.10 * 0.43) / max_coefficients = 406.3538783275578

score = 541.9686568168422 * 0.5 + 406.3538783275578 * 0.5 = 474.1612675722

Rating changes

Show

all results
Date Place Points Reason
2026-07-18 98 -> 97 474.16
2026-07-12 97 -> 98 474.16
2026-07-11 95 -> 97 474.16
2026-07-07 94 -> 95 481.05 -> 474.16

Moscow Open Riichi Marathon: 57% -> 43%
2026-06-15 95 -> 94 473.42 -> 481.05
2026-06-14 113 -> 95 410.76 -> 473.42

XII Russian Championship: 0% -> 100%
2026-06-13 113 413.63 -> 410.76

Moscow Riichi 2024: 43% -> 29%
2026-06-02 112 -> 113 413.63
2026-05-23 114 -> 112 413.63
2026-05-19 99 -> 114 447.45 -> 413.63

"Green Dragon" in the Secret Chamber: 14% -> 0%

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 490 2026-06-14 74/144 100% 4.71 RR XII Russian Championship Samara
2 451 2026-03-14 29/52 100% 2.30 CRR "Furin" club tournament: for the anniversary Moscow
3 767 2026-01-07 8/31 100% 3.00 RR Moscow Open Riichi Marathon 2026 Moscow
4 516 2025-01-07 16/32 43% 3.10 RR Moscow Open Riichi Marathon Moscow
5 371 2024-10-13 57/90 29% 3.75 RR Moscow Riichi 2024 Moscow
6 903 2024-05-19 4/32 0% 1.80 CRR "Green Dragon" in the Secret Chamber Korolyov
7 736 2023-06-11 24/88 0% 3.75 RR Money can not buy tenpai Perm
8 587 2022-11-06 32/76 0% 4.20 RR IX Russian Riichi Championship Perm
9 360 2022-06-12 72/112 0% 4.05 RR Moscow Riichi 2022 Moscow