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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, one season lasts approximately from April 1 to October 1; in "association football, it is generally from August until May (although in some countries, especially those in Northern Europe (except Denmark) and East Asia, the season starts in the spring and finishes in the autumn, due either to weather conditions encountered during the winter or to limit conflict with locally more popular football codes).
A year can often be broken up into several distinct sections (sometimes themselves called seasons). These are: a preseason, a series of exhibition games played for training purposes; a regular season, the main period of the league's competition; the "postseason, a playoff tournament played against the league's top teams to determine the league's champion; and the offseason, the time when there is no official competition.
Most team sports have a period of training to recover fitness levels, followed by "exhibition games (commonly known as friendlies outside North America) prior to the start of their regular seasons ("pre-season training" and "pre-season" games). The game results do not count in the season standings of the teams, so they serve conveniently to test player candidates and to practice teamwork under game conditions. They may be used to promote the team effectively both at home and elsewhere. For some teams a pre-season overseas tour may be profitable, even lucrative. For some leagues, overseas games may promote their sport or their league to new audiences.
In some sports there may be a pre-season curtain-raiser or ""supercup" competition—for example, in "England, the previous season's winners of the "FA Cup and "Premier League play one another for the "Community Shield before the start of the regular season. Part of the profits from this game are divided up amongst all teams participating in both competitions the year before, to donate to charities and good causes in their local area while the rest is given to national charities and good causes by "the FA itself.
In sport, the term "regular season" or "home and away season" refers to the sport's "league competition. The regular season is usually similar to a "group tournament format: teams are divided into groups, conferences and/or divisions, and each club plays a set number of games against a set number of opponents. In most countries the league is played in a double round-robin format, where every team plays every other team twice, once at their home venue, and once away at the oppositions venue as visitors. The results over all games are accumulated and when every team has completed its full schedule of games, a winner is declared.
In North America, the scheduling is different. Rather than every team playing all others twice, teams usually play more games against local rivals than teams in other parts of the country. For example, the "NBA's "Los Angeles Lakers will play the "Los Angeles Clippers (a team within their division, a subdivision of the conference) four times in a regular season, while both will only play the "Boston Celtics, who are in the opposite "Eastern Conference, twice. Part of this is due to the vast geographic distances between some teams in North America—measured in a straight line Los Angeles is 2,606 miles (4,194 kilometers) from Boston, for instance—and a desire to limit travel expenses. In the scheduling system used in the "NFL, it is possible for two teams to only meet every four years, and to only have 2 common opponents in a season. "Major League Baseball has the most uneven schedules of all the four major North American sports. In MLB the conferences are called leagues instead, but have exactly the same effect as "conferences (as with all "North American major leagues, leagues, conferences and division are not based on skill, but instead geography, history and rivalries). Teams play 19 games against each of teams in their own division each year but will only play 20 games total against all of the teams in the other league. Because each of the interleague matchups is part of a 3-game series or a 2-game series, teams will play no games at all against most teams from the other league. They play 6 of the 15 teams in the other league, a historically high number (until 1997, "interleague play was limited to exhibition matches and the postseason "World Series, and thus MLB teams did not play the other league's teams at all).
In Australia, the two largest football leagues, the "AFL ("Australian rules football) and "NRL ("rugby league), both grew out of competitions held within a single city (respectively Melbourne and Sydney) and only began expanding to the rest of the country when inexpensive air travel made a national league possible. These leagues use a single "table instead of being split into divisions. The term "home and away season" is sometimes used instead of regular season.
Many football leagues in Latin America have a very different system. Because most Latin American countries never had a football cup competition, they instead split their season into two parts, typically known as the "Apertura and Clausura ("Spanish for "opening" and "closing"). Most countries that use this system, Argentina being one notable example, crown separate league champions for each part of the season, using only league play. A few others, such as Uruguay, crown one champion at the end of a playoff involving top teams from each half of the season. Mexico operates its Apertura and Clausura as separate competitions that both end in playoffs. Brazil have a different system, the season starts with the state championships in January (every Brazilian state have his own championship), these state championships ends in April. The "Campeonato Brasileiro Série A itself starts in May and ends in early December, and is played in a double round-robin format in the same way as the European championships.
A system similar to the Apertura and Clausura developed independently in "Philippine professional basketball, with formerly two, now three tournaments (called "conferences") in one season, with each conference divided into an "elimination round" (the regular season) and the playoffs in the North American sense. Winning the playoffs is the ultimate goal of every team for every conference; while there is no season championship, "winning all conferences within a single season is rare and has only happened five times since 1975, with the two most recent examples occurring in "1996 and "2013–14. The elimination round and playoffs setup has permeated down to the local level and in most team sports, although seasons are not divided into conferences.
Many sports leagues have playoffs or "finals" that occur after the regular season is complete. A subset of the teams enter into a playoff "tournament, usually a "knockout tournament, generally a pre-determined number with better overall records (more wins, fewer losses) during the regular season. There are many variations used to determine the champion, the league's top prize. In many of these leagues, winning the league's top prize at the conclusion of the postseason is more important than winning the regular season. This includes the "five major U.S. sports leagues ("Super Bowl, "Stanley Cup Finals, "NBA Finals, "World Series and "MLS Cup), the major Australian sports ("NBL Grand Final, "A-League Grand Final, "AFL Grand Final and "NRL Grand Final) and the "CFL's "Grey Cup.
European leagues have also started holding playoffs after a double round-robin "regular season". The "Football League started its "promotion playoffs in 1987, with the third up to the sixth-ranked teams participating for the final promotion berth (the two top teams are automatically promoted). Elsewhere, relegation playoffs are also held to determine which teams would be relegated to the lower leagues. One prominent top-level football league, the "Eredivisie of the Netherlands, uses two different playoffs—one for relegation purposes, and the other to determine one of the league's entrants in the following season's "UEFA Europa League. In "Superleague Greece, which currently has two places in the "UEFA Champions League and three in the Europa League, the teams that finish second through fifth in the regular season enter a home-and-away "playoff" mini-league. Since one Europa League place is reserved for the country's cup winner, only three of the four teams are guaranteed a place in the next season's European competitions (unless both the cup winner and runner-up are already qualified for Europe by other means). The playoff determines the country's second Champions League participant, and the points at which the two or three Europa League entrants join that competition. Conversely, some leagues like the "Premier League do not hold a postseason, and therefore these leagues' champions and relegation are instead based on the regular season records.
Although rugby union did not become professional until 1995, that sport has a long history of playoffs, primarily in France and the Southern Hemisphere. The French national championship, now known as "Top 14, staged a championship final in its first season of 1892, first used more than one round of playoffs in 1893, and has continuously operated a playoff system (except during the two World Wars) since 1899. South Africa's "Currie Cup has determined its champions by playoffs since 1968, and New Zealand's "National Provincial Championship, the top level of which is now known as the "Mitre 10 Cup, has used playoffs since its creation in 1976. Argentina's "Nacional de Clubes has determined its champion by playoffs since its inception in 1993. Currently, two separate competitions feed into the Nacional, the "Torneo de la URBA (for Buenos Aires clubs, held since 1899) and "Torneo del Interior (for the rest of the country); both use playoffs to determine their champions. "Super Rugby, involving regional franchises from Australia, New Zealand, and South Africa and national franchises in Argentina and Japan, has used playoffs to determine its champions since its creation as Super 12 in 1996.
By contrast, other European countries were slow to adopt playoffs in rugby union. The "English Premiership only began playoffs in "1999–2000, and did not use them to determine the league champion until "2002-03. The Celtic League, now known as "Pro14, resisted a playoff system even longer; its champions were determined solely by league play from its inception in "2001–02 until playoffs began in "2009–10.
When the UEFA Champions League reformatted in 1993, it added a "knockout stage" involving four teams that finished at the top two places in their respective groups. Like North American sports leagues, this setup prevented some participants from facing each other, necessitating a two-round knockout stage to determine the champions. It has since been expanded to the 4-round knockout stage today. The "Copa Libertadores has applied a knockout stage since the 1988 tournament, expanding to the current four-round format next season. All intercontinental club football competitions now feature a knockout stage.
The off-season, vacation time, or close season is the time of year when there is no official competition. Although upper management continues to work, the athletes will take much "vacation time off. Also, various events such as drafts, "transfers and important off-season "free agent signings occur. Generally, most athletes stay in shape during the off-season in preparation for the next season. Certain new rules in the league may be made during this time, and will become enforced during the next regular season.
As most countries which have a league in a particular sport will operate their regular season at roughly the same time as the others, international tournaments may be arranged during the off season.
For example, most European football league club competitions run from July or August to May, subsequently major international competitions such as the "FIFA World Cup and "UEFA European Football Championship are organised to occur in June and July.
The table represents typical seasons for some leagues by month. Blank or white denotes off-season and pre-season months and solid colors mark the rest of the year. Leagues in the same sport use the same color.
|"A-League||"Association football||" "||P||F||S|
|"ACB||"Basketball||"[nb 1]||P||P F||S|
|"AFC Champions League||"Association football||Asia||Q||S||P||P||F|
|"AFL||"Australian rules football||"||S||P F|
|"AIHL||"Ice hockey||"||S||P F|
|"ATP World Tour||"Tennis||Worldwide||S||F|
|"ANZ Championship||"Netball||" "||S||P||F|
|"AUDL||"Ultimate Frisbee||" "||S||P F|
|"Asia Series||"Baseball||Asia||P F|
|"Bangladesh Premier League||"Cricket||"||S||P F|
|"Big Bash League||"Cricket||"||P F||S|
|"CAF Champions League||"Association football||Africa||Q||Q S||P||F|
|"Aviva Premiership||"Rugby union||"||P F||S|
|"Campeonato Brasileiro Série A||"Association football||"||S|
|"CFL||"Canadian football||"||E||S||P F|
|"Caribbean Premier League||"Cricket||" " " " " "||S||P F|
|"Chinese Super League||"Association football||"||S|
|"CONCACAF Champions League||"Association football||North America||P||P||P||P F|
|"CONCACAF League||"Association football||North America||P||P||P F|
|"Copa Libertadores||"Association football||South America||S||P||P||F|
|"Copa Sudamericana||"Association football||South America||S||P||P||F|
|"County Championship||"Cricket||" "||S|
|"Euro Beach Soccer League||"Beach soccer||Europe||S||P F|
|"European Rugby Champions Cup[nb 2]||"Rugby union||Europe||P||F||S|
|"European Tour[nb 3]||"Golf||Europe[nb 4]||F||S|
|"FIFA Club World Cup||"Association football||Worldwide||Q P F|
|"Greek Basket League||"Basketball||"||P||P F||S|
|"Guinness Pro14||"Rugby union||" " " " "[nb 5]||P F||S|
|"HSBC World Rugby Sevens Series||"Rugby sevens (union)||Worldwide||S|
|"Indian Premier League||"Cricket||"||S||P||F|
|"IndyCar Series||"Motorsport||"[nb 6]||S|
|"J1 League||"Association football||"||S|
|"KHL||"Ice hockey||" " " " " " "[nb 7]||P||P F||S|
|"La Liga||"Association football||"||S|
|"Lega Basket Serie A||"Basketball||"||P||P F||S|
|"Liga MX||"Association football||"[nb 8]||S||P F||S||P||P F|
|"Ligue 1||"Association football||"[nb 9]||S|
|"LPGA Tour||"Golf||"[nb 11]||S|
|"MLB||"Baseball||" "||E||E||S||P||P F||F[nb 12]|
|"MLL||"Lacrosse||" "||S||P F|
|"MLS||"Association football||" "||S||P||P||F|
|"Grand Prix motorcycle racing||"Motorsport||Worldwide||S|
|"NASCAR||"Motorsport||" " " "[nb 13]||E S||P[nb 14]||P||P F|
|"NBA||"Basketball||" "||P||P||P F||E S|
|"NFL||"American football||"[nb 15]||P||F||E||S|
|"NHL||"Ice hockey||" "||P||P||P F||E||S|
|"NHRA||"Drag racing||" "||S||P[nb 16]||P||P F|
|"NLL||"Lacrosse||" "||S||P F|
|"NRC||"Rugby union||" "[nb 17]||S||P||F|
|"NRL||"Rugby league||" "||S||P||F|
|"NCAA basketball||"Basketball||"||P||P F||S|
|"NCAA football||"American football||"||P F||S||P[nb 18]||P F[nb 18]|
|"PGA Tour||"Golf||"[nb 19]||P||P F||S|
|"PBA||"Basketball||"||P||P F S||P F||F||S||P F||S|
|"Premier League||"Association football||"[nb 20]||S|
|"Premier Soccer League||"Association football||"||S|
|"Primera División (Argentina)||"Association football||"[nb 21]||S|
|"Serie A||"Association football||"||S|
|"Serie del Caribe||"Baseball||Caribbean||P F|
|"Serie Nacional de Béisbol||"Baseball||"||P F||S|
|"Super League||"Rugby league||" "||S||P||P F|
|"Supercars Championship||"Motorsport||"[nb 22]||S|
|"Superleague Greece||"Association football||"||P||P||F||S|
|"Super Rugby||"Rugby union||" " " " "[nb 23]||S||P[nb 24]||P F[nb 25]||P F[nb 26]|
|"Top 14||"Rugby union||"||P||F[nb 27]||S|
|"Turkish Airlines EuroLeague||"Basketball||Europe||P||P||P||P||F||Q||Q S|
|"UEFA Champions League||"Association football||Europe||P||P||P||F||Q||Q||S|
|"UEFA Women's Champions League||"Association football||Europe||P||P||P||P||F||Q S||P||P||P||P|
|"UEFA Europa League||"Association football||Europe||P||P||P||F||Q||Q||S|
|"WNBA||"Basketball||"||E S||P||F[nb 28]|
|American football||August to December, playoffs from January to early February. College "bowl games from December to January. "Indoor football, past professional leagues such as the "USFL and "XFL, and some women's and amateur leagues play in the February to August season.|
|Association football||Usually August to May in the Northern Hemisphere, and February to November in the Southern Hemisphere. Exceptions are generally for one of two reasons:
(See "Domestic association football season for details.)
|Australian rules football||March to late August, with finals series extending up to late September or early October.|
|Baseball||April to early October, with playoffs extending up to early November. The Australian Baseball League runs from November to early February, with playoffs extending up to late February.|
|Basketball||In most countries, late October to mid-April, with playoffs extending up to mid-June. The three major exceptions to this rule are:
|Canadian football||July to late October, with playoffs extending into November.|
|Cricket||Year-round. Domestic seasons typically held in the driest period of the year—summer in temperate climates, dry season in tropical climates.|
|Ice hockey||Early October to mid-April, with playoffs extending up to early June. The three major exceptions to this rule are:
|Motor racing||Year-round, but generally concentrated from March to October. NASCAR runs from mid-February to late September, with playoffs extending up to late November.|
|Rugby league||Late February to October in both the Northern and Southern Hemispheres.|
|Rugby union||September to late May, sometimes the first weekend in June, in the Northern Hemisphere. In the Southern Hemisphere, Super Rugby starts in February and ends in early July in "World Cup years and mid-August in other years. Domestic competitions in "New Zealand and "South Africa overlap slightly with the Super Rugby season, starting in July and ending in October or November. In "Australia, the domestic competition does not overlap at all with Super Rugby, instead beginning in August and ending in early November.|