Medvedev Sergei

From Moscow, Russia

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Common russian riichi rating (CRR)

Rating date Jan. 9, 2024 (latest changes Jan. 9, 2024).

55 place (433.72).

max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.71 + 2.90 * 1) = 13.650060000000002

p1 = (360.36 * 4.05 * 0.43 + 586.67 * 4.20 * 0.71 + 735.63 * 3.75 * 1 + 0 + 0) / (4.05 * 0.43 + 4.20 * 0.71 + 3.75 * 1 + 1 + 1) = 490.5811523866834

p2 = (735.63 * 3.75 * 1 + 586.67 * 4.20 * 0.71 + 360.36 * 4.05 * 0.43) / max_coefficients = 376.86134712960967

score = 490.5811523866834 * 0.5 + 376.86134712960967 * 0.5 = 433.72124975814654

Rating changes

Show

all results
Date Place Points Reason
2024-01-06 52 -> 55 440.73 -> 433.72

IX Russian Riichi Championship: 86% -> 71%
2023-12-19 53 -> 52 440.73
2023-12-12 54 -> 53 444.69 -> 440.73

Moscow Riichi 2022: 57% -> 43%
2023-11-28 56 -> 54 444.69
2023-11-26 52 -> 56 446.11 -> 444.69
2023-11-20 54 -> 52 446.11
2023-11-06 51 -> 54 452.23 -> 446.11

IX Russian Riichi Championship: 100% -> 86%
2023-11-05 49 -> 51 452.23
2023-10-27 50 -> 49 452.23
2023-10-12 51 -> 50 454.96 -> 452.23

Moscow Riichi 2022: 71% -> 57%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 736 2023-06-11 24/88 100% 3.75 RR Money can not buy tenpai
2 587 2022-11-06 32/76 71% 4.20 RR IX Russian Riichi Championship
3 360 2022-06-12 72/112 43% 4.05 RR Moscow Riichi 2022