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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 the season lasts approximately from April to October.^[1] 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.

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.

Regular season

In sport, the term "regular season" or "home and away season"^[2] 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.

Postseason

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.

Off-season

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.

Seasons by league

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.

"E" denotes exhibition/preseason games.

"Q" denotes pre-competition qualifiers.

"S" denotes the start of the regular-season.

"P" denotes playoff(s)/postseason/knockout stages.

"F" denotes Final(s).

League	Sport	Countries/Regions	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
ABL	Baseball		P	F								S
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	Arena Football					S				PF
AFL	Australian rules football				S						P F
AIHL	Ice hockey					S				P F
ATP World Tour	Tennis	Worldwide	S										F
ANZ Premiership	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
Bundesliga	Association football									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 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
CPBL	Baseball				S							F
DTM	Motorsport					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
Formula One	Motorsport	Worldwide			S
Gallagher Premiership	Rugby union						P F				S
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
KBL	Basketball				P	F						S
KBO	Baseball					S						P F
KHL	Ice hockey	^{[nb 7]}			P	P F					S
La Liga	Association football									S
LBPRC	Baseball		P F									S
Lega Basket Serie A	Basketball						P	P F				S
LIDOM	Baseball		P F									S
Liga MX	Association football	^{[nb 8]}	S				P F			S			P	P F
Ligue 1	Association football	^{[nb 9]}								S
LMB	Baseball				E	S				P	F^{[nb 10]}
LMP	Baseball		P F									S
LPGA Tour	Golf	^{[nb 11]}	S
LVBP	Baseball		P F									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	E S
NBL	Basketball			P	P	F						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						P F							S
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]}
NPB	Baseball				S							P	F
NWSL	Association football				S						P F^{[nb 19]}
PGA Tour	Golf	^{[nb 20]}								P	P F	S
PBA	Basketball		P	P F S		P F	F	S		P F		S
Premier League	Association football	^{[nb 21]}								S
Premier Soccer League	Association football									S
Primera División (Argentina)	Association football	^{[nb 22]}								S
Serie A	Association football									S
Serie del Caribe	Baseball	Caribbean		P F
Serie Nacional de Béisbol	Baseball		P F										S
Sheffield Shield	Cricket				F							S
Suncorp Super Netball	Netball			S				P F
Super League	Rugby league			S							P	P F
Supercars Championship	Motorsport	^{[nb 23]}		S
Superleague Greece	Association football					P	P	F		S
Super Rugby	Rugby union	^{[nb 24]}		S				P^{[nb 25]}	P F^{[nb 26]}	P F^{[nb 27]}
Top 14	Rugby union						P	F^{[nb 28]}		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 29]}
WNBL	Basketball			P	P F							S
WRC	Motorsport	Worldwide	S
WTA Tour	Tennis	Worldwide										F	S

^ A team from Andorra, BC Andorra, has competed in the league since the 2014–15 season.

^ Replaced the former European club competition, the Heineken Cup, effective in 2014–15.

^ The current scheduling, in which the season starts in January, took effect in 2012. In 2010 and 2011, the schedule began late in the previous calendar year.

^ The bulk of the tour's sole-sanctioned events are in Europe, with some in the Persian Gulf countries. It co-sanctions many other events with tours in Asia, Africa, and Australia. Along with the PGA Tour, the European Tour co-sanctions the major championships and the World Golf Championships; one of the majors is held in the UK, one of the WGC events is held in China, and the rest of these events are in the US.

^ The league originally involved only the three Celtic nations; Italy joined beginning in the 2010–11 season, and South Africa in 2017–18.

^ Since the 2015 season, the only series race held outside the U.S. is hosted by Canada. Australia, Brazil, and Japan have hosted races in the past.

^ As of the most recent 2017–18 season, there are 21 teams in Russia and one each in Belarus, China, Finland, Kazakhstan, Latvia, and Slovakia.

^ Like many football leagues in Latin America, Mexico divides its season into two phases with separate champions in each phase. Unlike most leagues in that sport, Liga MX uses a knockout playoff, involving the top eight teams after league play, to determine its champions.

^ The current 2017–18 season features one team from Monaco in AS Monaco, which has been in the league on numerous occasions, most recently since the 2013–14 season.

^ The Serie del Rey usually ends in September.

^ Most LPGA events are held in the US, but it also sole-sanctions official money events in Thailand, Singapore, Mexico, China, Canada, Malaysia, and Taiwan, as well as an unofficial event in Brazil. Since 2013, two of its majors, one in the UK and the other in France, have been co-sanctioned with the Ladies European Tour. The LPGA also co-sanctions events with the Korean LPGA and Japan LPGA in those countries and the ALPG Tour in Australia.

^ The World Series usually ends in late October, but can extend into early November.

^ Since the 2013 season, the top two NASCAR touring series, the Cup Series and Xfinity Series, race only in the US. The third-level Truck Series has a race in Canada. The Xfinity Series has previously held races in Canada and Mexico. NASCAR also operates national series in Canada and Mexico and a European series, plus many regional developmental series in the US.

^ NASCAR has used a playoff-style system to determine the champion of the Cup Series since 2004; in 2016, it extended this system to its other two U.S. national touring series. The playoffs in the Xfinity and Truck Series are shorter than that of the Cup Series.

^ The NFL currently takes at least one regular-season game outside the US (London since 2007). The Jacksonville Jaguars are in the middle of a eight-year period (2013–2020) in which one home game is in London. The 2018 season will be the third consecutive season for a game in Mexico City. For several years in the early 21st century, the Buffalo Bills played one home game per season in Toronto.

^ The NHRA Mello Yello Drag Racing Series uses a playoff system known as the Countdown to the Championship to determine the champion of each of the four drag racing classes.

^ The competition was established in 2014 as a solely Australian affair; the Fijian Drua joined in 2017.

^ ^a^b The NCAA has never recognized an official champion in the top-level Division I FBS. Although the four-team College Football Playoff began in 2014, it is not an official NCAA championship event. All other NCAA divisions determine officially recognized champions in playoff tournaments that start in November. The playoffs in Divisions II and III end in December. Since the 2010 season, the Division I FCS playoffs end in January.

^ The schedule listed here is that for the current 2018 season. In some years, the playoffs are held in October. In addition, the NWSL season is disrupted twice in a four-year cycle—first by the FIFA Women's World Cup, and then the following year by the Summer Olympics. In those years, fewer regular-season games are played, and the league takes a break for the stated event.

^ The vast majority of the PGA Tour's sole-sanctioned events are in the US proper, but the tour also has events in Malaysia, Mexico, Canada, and Puerto Rico. Along with the European Tour, the PGA Tour co-sanctions the major championships and the World Golf Championships; one of the majors is held in the UK, one of the WGC events is held in China, and the rest of these events are in the US.

^ The next 2018–19 season will feature one team from Wales in Cardiff City, which had last played at that level in the 2013–14 season.

^ The 2016–17 season marked the completion of Argentina's transition from its former calendar-year Apertura and Clausura season format to a single league season spanning two calendar years.

^ Currently, one race is held in New Zealand. Bahrain, China, the United Arab Emirates, and the USA have staged races in the past. Longer-term plans call for additional races in Hong Kong, India, the Philippines, Singapore, South Africa, and South Korea.

^ Argentine and Japanese teams joined the competition in 2016. The Japanese team divides its "home" matches between Tokyo and Singapore.

^ The playoffs, or "finals" as they are officially called, begin in late June in Rugby World Cup years.

^ During World Cup years, the final match is held in July; in other years, the finals begin in July.

^ In non-World Cup years, the final match is held in August.

^ Depending on the calendar, the final may fall on the last weekend of May in some seasons.

^ During Summer Olympic years, the WNBA Finals run into late October. During years in which the FIBA Women's Basketball World Cup is held, the season is compressed, with the WNBA Finals ending in September. In other years, the WNBA Finals end in early October.

Summary

Sport	Duration
American football	Originally football was played only in the fall, but for many years the season has extended from late summer through early to mid-winter. The 16-game NFL regular season currently begins the first Thursday in September (after a month of exhibition games) and ends 17 weeks later around New Year's Day. The playoffs culminate with the Super Bowl on the first Sunday in February. The college season begins the last week in August. The regular season ends in late November, with playoff and bowl games throughout December and early 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: In some northern countries with severe winter weather (such as the United States, Norway, and Sweden), the season is contested within a calendar year (roughly March to November) to avoid the worst weather. However, other leagues use winter breaks to avoid most of the coldest days to prevent players suffering from hypothermia. In some countries where soccer competes with locally more popular football codes (i.e. Major League Soccer in the U.S., A-League in Australia), the season is arranged so as to minimize the time that it is in conflict with the more popular code(s). This arrangement also eases scheduling concerns regarding venues used for multiple football codes. However, in the case of the United States' MLS, their regular seasons can conflict with major tournaments such as the Gold Cup and FIFA World Cup due to the demand of the league's best national players to participate in the national squad. (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: The U.S. college basketball season begins in mid-November. The regular season ends in the first days of March, followed by conference tournaments and then national championship tournaments that run into early April. The Philippine Basketball Association has a unique calendar. Its season runs from early October to August, and is divided into "conferences"—not the North American concept of subgroupings within a larger competition, but rather separate competitions involving the same set of teams, similar to football's Apertura and Clausura in Latin America. The season was divided into three conferences from 1975 to 2003. It then transitioned to a two-conference season in 2004, and also changed to a season spanning two calendar years, with the transition completed in the 2004–05 season. The PBA returned to a three-conference season effective in 2010–11. The season starts with the Philippine Cup, restricted to Filipino players, followed by two other tournaments in which teams can field one non-Filipino, the Commissioner's and Governors Cups. The WNBA season is scheduled during the offseason of its parent league, the NBA. When the league was launched, all of its teams were owned by NBA teams and generally played in the same arenas as their NBA counterparts; however, this has changed over time. The scheduling also allows many WNBA players to participate in overseas leagues, primarily in Europe, Australia, and China, during the traditional basketball season.
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.
Golf	Year-round
Ice hockey	Early October to mid-April, with playoffs extending up to early June. The three major exceptions to this rule are: The U.S. men's college hockey season begins in early October. The regular season ends in late February or early March, followed by conference tournaments and then a national championship tournament that runs into mid-April. The women's season typically begins and ends two or three weeks earlier than the men's. The KHL regular season begins in early September and ends in late February. The playoffs run from March to mid-April. The Australian Ice Hockey League's season runs from April to mid-August, with playoffs extending up to late August.
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.
Swimming	Year-round
Tennis	Year-round

Notes and references

^ Jay Jaffe (September 8, 2014). "MLB announces 2015 schedule with April start, October finish"..mw-parser-output cite.citation{font-style:inherit}.mw-parser-output q{quotes:"""""""'""'"}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-limited a,.mw-parser-output .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}

^ Rodney D. Fort; John Fizel (2004). International Sports Economics Comparisons. Greenwood Publishing Group. pp. 316–. ISBN 978-0-275-98032-0.

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Vrstjr

Season (sports)

Contents

Regular season

Postseason

Off-season

Seasons by league

Summary

Notes and references

See also

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