Four types of team events have proven popular at clubs: board-a-match, Swiss, round-robin, and knockout. Clubs may use all of these team events as part of their regular masterpoint game schedule and for club championships.  A club may not conduct more than one session during a given play period (morning, afternoon, or evening). The only exception is a club that is sanctioned to hold a session on New Year’s Eve (December 31). It may schedule two sessions of play that night: one to begin before midnight and the other after.