Medvedev Sergei

From Moscow, Russia

Player page

Common russian riichi rating (CRR)

Rating date Sept. 3, 2025 (latest changes Sept. 3, 2025).

140 place (345.07).

max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8

p1 = (903.23 * 1.80 * 0.71 + 370.79 * 3.75 * 1 + 516.13 * 3.10 * 1 + 0 + 0) / (1.80 * 0.71 + 3.75 * 1 + 3.10 * 1 + 1 + 1) = 409.6158741246322

p2 = (516.13 * 3.10 * 1 + 370.79 * 3.75 * 1 + 903.23 * 1.80 * 0.71) / max_coefficients = 280.5243243243243

score = 409.6158741246322 * 0.5 + 280.5243243243243 * 0.5 = 345.07009922447827

Rating changes

Show

all results
Date Place Points Reason
2025-09-03 142 -> 140 345.07
2025-09-01 144 -> 142 341.38 -> 345.07
2025-08-31 141 -> 144 341.38
2025-08-26 142 -> 141 341.38
2025-08-04 142 340.04 -> 341.38
2025-08-03 140 -> 142 340.04
2025-07-30 141 -> 140 340.04
2025-07-19 137 -> 141 353.71 -> 340.04

"Green Dragon" in the Secret Chamber: 86% -> 71%
2025-07-13 134 -> 137 353.71
2025-07-12 134 351.04 -> 353.71

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 516 2025-01-07 16/32 100% 3.10 RR Moscow Open Riichi Marathon Moscow
2 371 2024-10-13 57/90 100% 3.75 RR Moscow Riichi 2024 Moscow
3 903 2024-05-19 4/32 71% 1.80 CRR "Green Dragon" in the Secret Chamber Korolyov
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