Caveman Chess

Caveman Chess is a Chicago-area tournament organizer known for running large open championships in the northern Illinois region. Their annual festival weekend at the Crowne Plaza Chicago O'Hare hosts a cluster of simultaneous national-level events including the U.S. Junior Open Championship, U.S. Senior Open Championship, U.S. Blind Open Championship, and the Caveman Medior Open — making it one of the most concentrated weekend tournament lineups in the Midwest. Events are held in Rosemont, Illinois and registration is handled through King Registration.