Definition & Meaning of "round-robin"

What is a "round-robin"?

A round-robin is a type of tournament format where each participant competes against every other participant. In a round-robin chess tournament, each player plays a game against all the other players, ensuring that everyone faces every opponent. The results of these games are used to determine the winner based on the number of points earned, with a win typically earning one point and a draw half a point. The player with the most points at the end of all the games is declared the winner. This format is popular in many sports and games because it guarantees that all participants have equal opportunities to compete.