The following is a list of world cups and world championships for juniors and youth, sporting events which use one of these two names, or a name with a similar meaning. Tournaments which are formally defunct or where a further event is not currently planned are marked with a gray background.
| Sport | Competition name | Competing entities | Age groups | First held | Current holder | Next | Held every |
|---|---|---|---|---|---|---|---|
| Gliding | Junior World Gliding Championships | Individuals | 25 or younger | 1999 | 2020 | Two years | |
| Sailing | ISAF Youth Sailing World Championships | Nations | Under 19's | 1971 | 2019 | 2021 | One Year |
| Classes World Championship | Held in the 420, Optimist, Topper, Laser 4.7 etc. | Various | Various | ||||
| Rallying | Junior WRC | 2001 | 2019 | 2020 | One year |
| Sport | Competition name | Competing entities | Age groups | First held | Current holder | Next | Held every |
|---|---|---|---|---|---|---|---|
| Archery | World Youth Archery Championships | Individuals and Nations | 1991 | 2019 | 2021 | Two year | |
| Badminton | BWF World Junior Championships | Nations | 19 or younger | 1992 |  Indonesia (2019) | 2021 | One year |
| Basketball | FIBA 3x3 U18 World Cup | 18 or younger | 2011 |  France (2012) | Defunct | Only held in 2011 and 2012 | |
| Figure skating | World Junior Figure Skating Championships | Two mixed team events (pairs and ice dancing) | 13–19 (women); 13–21 (men) | 1976 | 2020 | 2021 | One year |
| Petanque | Pétanque World Championships | 1987 | 2019 | 2021 | Two years | ||
| Softball | WBSC U-12 Softball World Cup | Nations | 12 or younger | 2019 |  Chinese Taipei (2019) | 2021 | Two year |
| Synchronized skating | ISU World Junior Synchronized Skating Championships | 2013 | 2020 | 2021 | One year | ||
| Tug of war | TWIF Outdoor World Championships | Nations | 1976 | Winners in various weight classes (2018) | 2021 | Two years | |
R. ^R – One or more relay events, in which three or four competitors compete for their nation, are included for each sex.
D. ^D – Includes three Doubles events, one for men, one for women, and one for mixed doubles.
Baseball is a bat-and-ball sport played between two teams of nine players each, taking turns batting and fielding. The game occurs over the course of several plays, with each play generally beginning when a player on the fielding team, called the pitcher, throws a ball that a player on the batting team, called the batter, tries to hit with a bat. The objective of the offensive team is to hit the ball into the field of play, away from the other team's players, allowing its players to run the bases, having them advance counter-clockwise around four bases to score what are called "runs". The objective of the defensive team is to prevent batters from becoming runners, and to prevent runners' advance around the bases. A run is scored when a runner legally advances around the bases in order and touches home plate.
Little League Baseball and Softball is a 501(c)(3) nonprofit organization based in South Williamsport, Pennsylvania, United States, that organizes local youth baseball and softball leagues throughout the United States and the rest of the world.
In an organized sports league, a typical season is the portion of one year in which regulated games of the sport are in session: for example, in Major League Baseball the season lasts approximately from the last week of March to the last week of September. In other team sports, like association football or basketball, it is generally from August or September to May although in some countries – such as Northern Europe or East Asia – the season starts in the spring and finishes in autumn, mainly due to weather conditions encountered during the winter.
The All-Ireland Senior Football Championship (SFC) is the premier inter-county competition in Gaelic football. County teams compete against each other and the winner is declared All-Ireland Champions.
College baseball is baseball that is played on the intercollegiate level at institutions of higher education. In the United States, college baseball is sanctioned mainly by the National Collegiate Athletic Association (NCAA); in Japan, it is governed by the All Japan University Baseball Federation (JUBF).
Sport in New Zealand largely reflects the nation's colonial heritage, with some of the most popular sports being rugby union, rugby league, cricket, association football, basketball, horse racing and netball, which are primarily played in Commonwealth countries. New Zealand has enjoyed success in many sports, notably rugby union, rugby league, cricket, America's Cup sailing, world championship and Olympics events, and motorsport.
There are a number of formats used in various levels of competition in sports and games to determine an overall champion. Some of the most common are the single elimination, the best-of- series, the total points series more commonly known as on aggregate, and the round-robin tournament.
In games and sport, a tiebreaker or tiebreak is used to determine a winner from among players or teams when their scores are tied at the end of a contest, or a set of contests.
Professional sports leagues are organized in numerous ways. The two most significant types are one that developed in Europe, characterized by a tiered structure using promotion and relegation in order to determine participation in a hierarchy of leagues or divisions, and a North American originated model characterized by its use of franchises, closed memberships, and minor leagues. Both these systems remain most common in their area of origin, although both systems are used worldwide.
Baseball was introduced to Japan in 1872 and is Japan's most popular participatory and spectator sport. The first professional competitions emerged in the 1920s. The highest level of baseball in Japan is Nippon Professional Baseball (NPB), which consists of two leagues, the Central League and the Pacific League, with six teams in each league. High school baseball enjoys a particularly strong public profile and fan base, much like college football and college basketball in the United States; the Japanese High School Baseball Championship, which takes place each August, is nationally televised and includes regional champions from each of Japan's 47 prefectures.
The All-Ireland Junior Hurling Championship was a hurling competition organized by the Gaelic Athletic Association in Ireland. The competition was originally contested by the second teams of the strong counties, and the first teams of the weaker counties. In the years from 1961 to 1973 and from 1997 until now, the strong counties have competed for the All-Ireland Intermediate Hurling Championship instead. The competition was then restricted to the weaker counties. The competition was discontinued after 2004 as these counties now compete for the Nicky Rackard Cup instead.
Sport in Wales plays a prominent role in Welsh culture. Like the other countries of the United Kingdom, Wales enjoys independent representation in major world sporting events such as the FIFA World Cup and in the Rugby World Cup, but competes as part of Great Britain in some other competitions, including the Olympics.
A replay is the repetition of a match in many sports.
Major League Baseball (MLB) is the highest level of baseball in the United States. The sport is one of the most popular sports in the U.S. for both participants and spectators. The World Series of MLB is the culmination of baseball's postseason each October. It is played between the winner of each of the two leagues, the American League and the National League, and the winner is determined through a best-of-seven playoff.
The World Series is the annual final championship series of Major League Baseball (MLB) in the United States and Canada. It has traditionally been held in October, though some more recent editions were contested in November due to expanded playoffs and/or season delays. It has been contested since 1903 between the champion teams of the American League (AL) and the National League (NL). The winner of the World Series championship is determined through a best-of-seven playoff, and the winning team is awarded the Commissioner's Trophy.
The North American continent is the birthplace of several organized sports, such as basketball, charrería/rodeo, gridiron football, ice hockey, jaripeo/bull riding, lacrosse, ollamaliztl, mixed martial arts (MMA), racquetball, ultimate, and volleyball. The modern versions of baseball and softball, skateboarding, snowboarding, stock car racing, and surfing also developed in North America.
The 2019 League of Legends World Championship was an esports tournament for the multiplayer online battle arena video game League of Legends. It was the ninth iteration of the League of Legends World Championship, an annual international tournament organized by the game's developer, Riot Games. It was held from October 2, 2019, to November 10, 2019, in Berlin, Madrid and Paris. Twenty four teams from 13 regions qualified for the tournament based on their placement in regional circuits such as those in China, Europe, North America, South Korea and Taiwan/Hong Kong/Macau with twelve of those teams having to reach the main event via a play-in stage.
The 2020 League of Legends World Championship was an esports tournament for the multiplayer online battle arena video game League of Legends. It was the tenth iteration of the League of Legends World Championship, an annual international tournament organized by the game's developer, Riot Games. It was held from 25 September to 31 October in Shanghai, China. Twenty-two teams from eleven regions qualified for the tournament based on their placement in regional circuits, such as those in China, Europe, North America, South Korea and Taiwan/Hong Kong/Macau/Southeast Asia, with ten of those teams having to reach the main "groups" event via a play-in stage.
The 2021 League of Legends World Championship was an esports tournament for the multiplayer online battle arena video game League of Legends. It was the eleventh iteration of the League of Legends World Championship, an annual international tournament organized by the game's developer, Riot Games. The tournament was held from 5 October to 6 November in Reykjavík, Iceland. Twenty two teams from 11 regions qualified for the tournament based on their placement in regional circuits such as those in China, Europe, North America, South Korea and Taiwan/Hong Kong/Macau/Southeast Asia with ten of those teams having to reach the main event via a play-in stage.
