USHAKOV Igor

From Moscow, Russia

EMA: 15990490

Player page

Internal rating (RR)

Rating date Aug. 14, 2026 (latest changes Aug. 13, 2026).

196 place (213.72).

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

p1 = (697.67 * 3 * 0.86 + 51.95 * 3.45 * 1 + 216.78 * 4.71 * 1 + 0 + 0) / (3 * 0.86 + 3.45 * 1 + 4.71 * 1 + 1 + 1) = 235.18415244319115

p2 = (697.67 * 3 * 0.86 + 216.78 * 4.71 * 1 + 51.95 * 3.45 * 1) / max_coefficients = 192.254966736462

score = 235.18415244319115 * 0.5 + 192.254966736462 * 0.5 = 213.7195595898266

Rating changes

Show

all results
Date Place Points Reason
2026-08-13 199 -> 196 213.72
2026-08-04 201 -> 199 213.72
2026-08-03 190 -> 201 230.85 -> 213.72

Two roosters and Chuckles: 100% -> 86%
2026-08-02 192 -> 190 230.85
2026-07-25 190 -> 192 230.85
2026-07-18 187 -> 190 230.85
2026-07-12 185 -> 187 230.85
2026-07-02 186 -> 185 230.85
2026-07-01 188 -> 186 230.85
2026-06-26 189 -> 188 230.85

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 217 2026-06-14 113/144 100% 4.71 RR XII Russian Championship Samara
2 52 2025-08-31 74/78 100% 3.45 RR SPB Riichi Open 2025 Saint Petersburg
3 698 2025-08-03 14/44 86% 3.00 RR Two roosters and Chuckles Kirov