USHAKOV Igor

From Moscow, Russia

EMA: 15990490

Player page

Internal rating (RR)

Rating date June 15, 2026 (latest changes June 14, 2026).

190 place (227.02).

max_coefficients = (4.71 * 1 + 4.10 * 1 + 3.90 * 1 + 3.45 * 1) = 16.16

p1 = (697.67 * 3 * 1 + 51.95 * 3.45 * 1 + 216.78 * 4.71 * 1 + 0 + 0) / (3 * 1 + 3.45 * 1 + 4.71 * 1 + 1 + 1) = 250.25

p2 = (697.67 * 3 * 1 + 216.78 * 4.71 * 1 + 51.95 * 3.45 * 1) / max_coefficients = 203.79269801980195

score = 250.25 * 0.5 + 203.79269801980195 * 0.5 = 227.02134900990097

Rating changes

Show

all results
Date Place Points Reason
2026-06-14 185 -> 190 196.73 -> 227.02

XII Russian Championship: 0% -> 100%
2026-06-09 188 -> 185 196.73
2026-05-17 187 -> 188 196.73
2026-05-14 189 -> 187 196.73
2026-05-12 197 -> 189 196.73
2026-05-03 193 -> 197 196.22 -> 196.73
2026-05-01 195 -> 193 196.22
2026-04-27 196 -> 195 196.22
2026-04-19 191 -> 196 196.22
2026-04-16 192 -> 191 196.22

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 14/44 100% 3.00 RR Two roosters and Chuckles Kirov