Ushakov Sergei

From Samara, Russia

Player page

Internal rating (RR)

Rating date Sept. 4, 2026 (latest changes Sept. 3, 2026).

163 place (281.90).

max_coefficients = (4.71 * 1 + 3.90 * 1 + 3.40 * 1 + 3.40 * 1) = 15.41

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 = 253.72744970798183

score = 310.0666137985726 * 0.5 + 253.72744970798183 * 0.5 = 281.8970317532772

Rating changes

Show

all results
Date Place Points Reason
2026-09-02 164 -> 163 281.90
2026-09-01 165 -> 164 281.90
2026-08-31 168 -> 165 281.49 -> 281.90
2026-08-26 169 -> 168 281.49
2026-08-16 165 -> 169 281.49
2026-08-15 165 280.56 -> 281.49
2026-08-13 166 -> 165 280.56
2026-08-04 167 -> 166 280.56
2026-07-25 166 -> 167 280.56
2026-07-18 164 -> 166 280.56

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