USHAKOV Igor

From Moscow, Russia

EMA: 15990490

Player page

Common russian riichi rating (CRR)

Rating date Jan. 15, 2026 (latest changes Jan. 15, 2026).

223 place (196.22).

max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95

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 = 151.98929765886288

score = 240.44867724867726 * 0.5 + 151.98929765886288 * 0.5 = 196.21898745377007

Rating changes

Show

all results
Date Place Points Reason
2026-01-12 225 -> 223 196.22
2026-01-05 226 -> 225 196.22
2026-01-03 225 -> 226 196.22
2026-01-01 224 -> 225 196.22
2025-12-27 221 -> 224 196.22
2025-12-09 222 -> 221 196.22
2025-12-07 217 -> 222 196.22
2025-12-06 215 -> 217 196.22
2025-12-04 217 -> 215 196.22
2025-11-30 218 -> 217 196.22

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