PatternChessEvents

Events Clubs About & API

Portland Winter Open

Date: Sat, Dec 12, 2026 – Sun, Dec 13, 2026
Host: Portland Chess Club — Portland, OR

Register Event page at source

USCF-rated chess tournaments & club events across the United States, aggregated from club calendars and US Chess listings. A PatternChess project.About, data API & iCal feeds.