USHAKOV Igor

From Moscow, Russia

EMA: 15990490

Player page

Internal rating (RR)

Rating date May 24, 2026 (latest changes May 17, 2026).

188 place (196.73).

max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.45 * 1 + 3.40 * 1) = 14.85

p1 = (697.67 * 3 * 1 + 51.95 * 3.45 * 1 + 0 + 0 + 0) / (3 * 1 + 3.45 * 1 + 1 + 1 + 1) = 240.44867724867726

p2 = (697.67 * 3 * 1 + 51.95 * 3.45 * 1) / max_coefficients = 153.0127946127946

score = 240.44867724867726 * 0.5 + 153.0127946127946 * 0.5 = 196.73073593073593

Rating changes

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all results
Date Place Points Reason
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
2026-04-11 189 -> 192 196.22
2026-04-05 184 -> 189 196.22

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 52 2025-08-31 74/78 100% 3.45 RR SPB Riichi Open 2025 Saint Petersburg
2 698 2025-08-03 14/44 100% 3.00 RR Two roosters and Chuckles Kirov