A group tournament is a competition where entrants play head-to-head fixtures over successive rounds. Results rank entrants, where draws are resolved using tiebreakers. The rankings represent an accurate placement of entrant skill at the conclusion of the final round.
Entrants play each other an equal number of times in a round-robin tournament. It is a common format that can be found in both sports and esports. For example, the Rocket League Championship Series uses a single round-robin for league play and the NFL uses double round-robin for divisional play.
A Swiss tournament pairs entrants together every round according to current standings.
Due to pairing, a Swiss tournament requires less fixtures than a round-robin.
The suggested minimum number of rounds is log₂(number of entrants). Swiss Triangle calculates the minimum number of rounds and visualizes the Swiss format.
CSGO Majors Entrants: 4–64