A competition that narrows a field of contestants (semifinalists) to a set of finalists, for a subsequent final.
A playoff in the round with only four players or teams left, the stage before the final.
A series of games; either the same game played many times, or a succession of games related by a single theme; played competitively to determine a single winning team or individual.
During the Middle Ages, a series of battles and other contests designed to prepare knights for war.
A digraph obtained by assigning a direction to each edge in an undirected complete graph.