FAT League is first and foremost designed for singles play. Doubles consists of self-scheduled, often impromptu, matches throughout the regular season, and partners may elect to be placed on an informal challenge ladder. An end-of-season Tournament is held for participants of either singles or doubles. To qualify, one must have qualified for the singles Playoffs or, as a doubles-only participant, played and reported one doubles match by two days prior to the event. A qualifying match must include one player already in the league [?], all participants must submit their email addresses for official recognition, and the winning side must have won at least 6 games (the format is otherwise discretionary).