Ushakov Sergei

From Samara, Russia

Player page

Common russian riichi rating (CRR)

Rating date Nov. 5, 2026 (latest changes Nov. 4, 2026).

216 place (286.15).

max_coefficients = (4.71 * 1 + 3.40 * 1 + 3.40 * 1 + 3.40 * 1) = 14.91

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 = 262.23608316566066

score = 310.0666137985726 * 0.5 + 262.23608316566066 * 0.5 = 286.15134848211665

Rating changes

Show

all results
Date Place Points Reason
2026-11-04 218 -> 216 281.90 -> 286.15
2026-11-01 216 -> 218 281.90
2026-10-31 211 -> 216 281.90
2026-10-26 212 -> 211 281.90
2026-10-24 210 -> 212 281.90
2026-10-16 213 -> 210 281.90
2026-10-13 219 -> 213 281.90
2026-10-10 218 -> 219 281.90
2026-10-02 219 -> 218 281.90
2026-09-26 220 -> 219 281.90

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