USHAKOV Igor

From Moscow, Russia

EMA: 15990490

Player page

Common russian riichi rating (CRR)

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

258 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

Show

all results
Date Place Points Reason
2026-06-14 259 -> 258 196.73
2026-06-13 260 -> 259 196.73
2026-06-09 263 -> 260 196.73
2026-05-31 256 -> 263 196.73
2026-05-25 257 -> 256 196.73
2026-05-17 254 -> 257 196.73
2026-05-14 257 -> 254 196.73
2026-05-12 262 -> 257 196.73
2026-05-11 261 -> 262 196.73
2026-05-03 255 -> 261 196.22 -> 196.73

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