Ushakov Sergei

From Samara, Russia

Player page

Common russian riichi rating (CRR)

Rating date June 16, 2026 (latest changes June 15, 2026).

212 place (280.56).

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

p1 = (600 * 3 * 1 + 261.90 * 2.90 * 1 + 286.71 * 4.71 * 1 + 0 + 0) / (3 * 1 + 2.90 * 1 + 4.71 * 1 + 1 + 1) = 310.0666137985726

p2 = (600 * 3 * 1 + 286.71 * 4.71 * 1 + 261.90 * 2.90 * 1) / max_coefficients = 251.05383228961404

score = 310.0666137985726 * 0.5 + 251.05383228961404 * 0.5 = 280.5602230440933

Rating changes

Show

all results
Date Place Points Reason
2026-06-15 214 -> 212 276.01 -> 280.56
2026-06-14 237 -> 214 229.97 -> 276.01

XII Russian Championship: 0% -> 100%
2026-06-13 239 -> 237 229.97
2026-06-04 240 -> 239 229.97
2026-06-02 241 -> 240 229.97
2026-06-01 242 -> 241 229.97
2026-05-31 234 -> 242 229.97
2026-05-26 235 -> 234 229.97
2026-05-25 236 -> 235 229.97
2026-05-23 237 -> 236 229.97

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 287 2026-06-14 103/144 100% 4.71 RR XII Russian Championship Samara
2 262 2026-05-03 32/43 100% 2.90 RR Sturgeon in tempai Saratov
3 600 2026-01-25 23/56 100% 3.00 RR Riichi On Ice 2026 Samara