Sobolev Sergei

From Izhevsk, Russia

Player page

Common russian riichi rating (CRR)

Rating date March 23, 2026 (latest changes March 21, 2026).

287 place (119.64).

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

p1 = (368.42 * 1.30 * 1 + 333.33 * 1.60 * 1 + 0 + 0 + 0) / (1.30 * 1 + 1.60 * 1 + 1 + 1 + 1) = 171.5728813559322

p2 = (333.33 * 1.60 * 1 + 368.42 * 1.30 * 1) / max_coefficients = 67.71103678929767

score = 171.5728813559322 * 0.5 + 67.71103678929767 * 0.5 = 119.64195907261492

Rating changes

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all results
Date Place Points Reason
2026-03-21 287 119.64

Grief from Uma: 0% -> 100%

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 333 2026-03-21 11/16 100% 1.60 CRR Grief from Uma Izhevsk
2 368 2026-01-03 13/20 100% 1.30 CRR The Birth of the Club Izhevsk