Compared to a knockout tournament, a Swiss system has the advantage of not eliminating anyone; a player who enters the tournament knows that they can play in all the rounds, regardless of results. The only exception is that one player is left over when there is an odd number of players. The player left over receives a bye: they do not play that round but are usually awarded the same number of points as for winning a game (e.g. one point for a chess tournament). The player is reintroduced in the next round and will not receive another bye.