of War Gears Esports Events. This format is also used in the recent format of Rocket League's RLCS X's Fall Split, as well as all international major tournaments and the world championship of RLCS 2021-2022. The Swiss format will first be used in the 2023 League of Legends World Championship. Go Relatively few Go tournaments use the Swiss system. Most amateur Go tournaments, at least in Europe and America, now use the McMahon system instead. Swiss-system tournaments must start with very unequal matches in the early rounds—"slaughter pairing" is the name of one initial pattern used—if the Swiss pairing rules applied subsequently are to allow the top players to meet in the latest rounds. The McMahon system is designed to give all players games against similarly skilled players all along, and to produce final standings that more accurately reflect the true current skill levels of players. Gwent One of the two qualifying tournaments for the Gwent Open and Gwent World Masters, the official tournaments for the card game Gwent, partially employ the Swiss system. The Qualifier #2 consist of two days, the first of which is played with Swiss-system selection with best-of-three competition for each pair of players. The second round instead employs double elimination and best-of-five. The more exclusive Qualifier #1 only uses the double-elimintation, best-of-five format. The actual tournaments (Gwent Open and Gwent World Masters) are single-elimination best-of-five. Thus the Swiss system is only used as preselection for preselection (who gets to progress to day 2, who then gets to go to the tournament). Magic: the Gathering The DCI, the tournament sanctioning body for the card game Magic: The Gathering, uses a Swiss system for most tournaments. Unlike with other Swiss implementations, players receive three points for a win and only one for a draw. After sufficient rounds to mathematically ensure that players with a record of one loss or better will be ranked in the top eight players, typically the top eight players advance to a single-elimination stage, with several statistics used as tie-breakers. The minimum number of players to top 8 are 16 or more, and top 4 with 8 players or more, and top 2 (if necessary) if there are 4 or more players. Grand Prix main events are split into two days. On day 1, eight or more Swiss rounds are played, where anyone with at least 18 match points (a record of 6-2