League tiers and affiliated leagues

What a tier is

A league’s tier is its position in a national hierarchy. The Premier League describes itself as “the top tier of England’s football pyramid, with 20 teams” and the Championship as “the second tier of English football”; the same idea is expressed as top flight, first division, Primera División, Serie A or Liga de Primera depending on the country, and the second tier has names of its own — EFL Championship, La Liga 2, 2. Bundesliga, Ligue 2, Serie B, Primera Nacional, Liga de Expansión MX.^{[9] [16] [19]}

Tier is a domestic fact; standing across countries is a separate question. The clearest external grading of tiers is the English FA’s Governing Body Endorsement criteria, which for 2025/26 sort foreign leagues into six bands for work-permit points: Band 1 is the Premier League, Bundesliga, La Liga, Serie A and Ligue 1; Band 2 the Primeira Liga, Eredivisie, Belgian First Division A, Turkish Super Lig and EFL Championship; Band 3 MLS, the Brasileirão Série A, the Primera División of Argentina, Liga MX and the Scottish Premiership; Band 4 includes La Liga 2, 2. Bundesliga, Ligue 2 and the Colombian Primera A; Band 5 includes Serie B, J1, K League 1 and the A-League; Band 6 is everything else. A player scores twelve points for the quality of a Band 1 league and two for Band 6.^[9]

Open pyramids and closed leagues

In an open pyramid, membership of a tier is won and lost on the field. The Premier League’s rule is the model: “the teams who finish in the bottom three … are relegated to the Championship”, replaced by the Championship’s first and second and a third promoted through playoffs. In a closed league, membership is granted by the existing members. The NFL Constitution limits membership “to the thirty-two (32) member clubs specified in Section 4.5 hereof and such new members as may be thereafter duly elected”, and admission “shall require the affirmative vote of three-fourths of the existing member clubs”; the NBA Constitution requires that “each Prospective Owner must be approved by the affirmative vote of not less than three-fourths (3/4) of all Governors”, with a USD 1,000,000 application fee. Neither document contains a relegation mechanism. San Diego’s 2023 entry into MLS carried a reported USD 500 million expansion fee, an MLS record, which the league declined to confirm.^{[16] [17] [18] [20]}

The two models are not fixed. Liga MX suspended promotion and relegation in April 2020; the Court of Arbitration for Sport sided with the Mexican federation on the suspension while recommending that merit-based movement return for 2026–27; and in July 2026 the federation instead wrote into Article 35 of its competition regulations that from 2026–27 Liga MX clubs “no descenderán a la Expansión MX, así mismos los de Expansión MX no ascenderán” — a closed league with no stated end date.^[19]

Two champions a year

Most Latin American top divisions crown two champions a season. The Argentine format for 2026, drawn by the AFA on 10 December 2025, is “Primer semestre: Torneo Apertura. Segundo semestre: Torneo Clausura”, each with “2 zonas de 15 equipos cada una” and playoffs from the round of 16; Liga MX likewise names its two tournaments Apertura and Clausura; Colombia’s DIMAYOR opens each Liga BetPlay tournament with a 20-team “FASE I – TODOS CONTRA TODOS”. For a petition the consequence is arithmetic: an Apertura title is a national championship, but a season contains two of them, and “champion” without the tournament name is ambiguous.^{[19] [21] [48]}

Affiliation in baseball: the 2021 restructuring

The modern meaning of an affiliated minor league was fixed on 12 February 2021, when Major League Baseball announced that all 120 clubs offered Professional Development League licences “have officially agreed to accept” them. Each MLB club now supplies “four affiliates – one at each of the Triple-A, Double-A, High-A and Low-A levels”, and “the integrated player development system now includes 179 teams across 17 leagues … Including the Arizona and Gulf Coast Leagues, there are 209 teams across 19 leagues …”. MLB’s own description of the system is that “players are assigned by MLB teams to Minor League affiliates — there are no open tryouts …”.^[22] [45]

Outside the licensed system sit the Partner Leagues. MLB’s glossary lists “the American Association, Atlantic League, Frontier League and Pioneer League” as “professional baseball leagues that have been designated as Partner Leagues of Major League Baseball”; the designations were announced in September 2020, with the Pioneer League following in 2021. They are professional and they have a relationship with MLB, but they are not affiliated in the licence sense. The Mexican League, a Triple-A member of the old National Association from 1967, left the system in the 2021 restructuring and has been an independent league since.^{[23] [24] [46]}

Affiliation in basketball and hockey

The NBA G League states its own status: “the NBA G League is the NBA’s official minor league”, with “31 teams – 30 of which are affiliated with an NBA team as of the 2026-27 season”, the Mexico City Capitanes the exception. The instrument that binds the two leagues is the Two-Way contract: “NBA teams may have up to three players under NBA Two-Way Contracts”, who “will spend the bulk of the season in the NBA G League and not play more than 50 games with their NBA team”, at a salary “equal to 50% of the NBA minimum salary” — USD 636,435 for 2025–26 — and “only players in their fourth NBA season or earlier” are eligible.^[25] [26]

In hockey the AHL pairs each of its 32 clubs with one NHL club — Abbotsford with Vancouver, the Toronto Marlies with Toronto — and the ECHL, a tier below, “has affiliations with 30 of the 32 NHL teams in 2025-26”. The NHL–NHLPA collective agreement of 2013, in force through the 2025–26 season, supplies the contract vocabulary: a “Two-Way Qualifying Offer” provides an NHL salary “when the Player is in the NHL, and a Paragraph 1 Minor League Salary to be effective when the Player is Loaned to a club outside the NHL”, a “One-Way” offer pays the NHL salary “regardless of whether such Player plays in the NHL or is Loaned”, and “Loan” means transfer “to the roster of a club outside the NHL”.^{[27] [28] [29]}

Affiliation in soccer and golf

MLS NEXT Pro was “launched in 2022 by Major League Soccer” and “enters its fifth season in 2026 with 30 teams, 27 MLS-affiliated and three independent” — Carolina Core FC, Chattanooga FC and CT United FC. The MLS Roster Rules define the traffic: “a club may sign a player, age 25 or younger during the league season, from its affiliate (MLS NEXT Pro) to a maximum of four Short-Term Agreements (up to four-day contracts) each season (maximum of 16 days)”, such a player “may appear in no more than two MLS league season matches”, “all loans from MLS clubs to its affiliates must be free”, and a Homegrown Player is one who joined the academy “no later than the year in which he turned 15 years old” and “signs his first professional contract with MLS or an MLS club’s affiliate (MLS NEXT Pro)”.^[30] [31]

Golf’s version is ownership plus a promotion rule. The Korn Ferry Tour was founded in 1990 and is owned and operated by the PGA TOUR, and “the top 20 on the Korn Ferry Tour Points List after the Korn Ferry Tour Championship … will earn 2027 PGA Tour cards”, with places 21 to 60 keeping Korn Ferry Tour status; PGA TOUR Americas, a tier further down, sends its top ten to the Korn Ferry Tour.^{[32] [47] [49]}

Reserve teams in Europe: subordinate, not affiliated

European football has no affiliated minor leagues; it has reserve teams inside the pyramid, and the rules exist to keep them subordinate. The DFB Spielordnung in force from 1 July 2026 provides at §55 Nr. 3 that “das Recht zum Aufstieg in die 2. Bundesliga entfällt für den Verein, … der bereits mit einer Mannschaft am Spielbetrieb der Lizenzligen des kommenden Spieljahres teilnimmt” — a club already fielding a team in the licensed leagues cannot promote a second — and at §45 Nr. 1.3 that “Zweite Mannschaften von Lizenzvereinen sind ab der Spielzeit 2008/2009 an den Spielen um den DFB-Vereinspokal nicht teilnahmeberechtigt”.^[33]

Liga Portugal’s 2026/27 competition regulations, Anexo V, define an “equipa B” as “a equipa secundária de cada clube … competitivamente subordinada à equipa principal”, allow “o máximo de cinco equipas B” in Liga Portugal 2, provide that “é vedada a participação das equipas B na Taça de Portugal e na Taça da Liga”, that “independentemente da classificação obtida por uma equipa B, esta nunca poderá ascender à Liga Portugal 1”, that the two teams may never share a division, and that if the parent is relegated “a equipa B descerá de forma automática”. Spain’s RFEF regulations could not be fetched for this page; the secondary account is that Spanish reserve sides may not play in the parent’s division and have been barred from the Copa del Rey since 1990.^[34] [35]

How leagues are ranked

UEFA “calculates the coefficient of each association each season based on the clubs’ results in the UEFA Champions League, UEFA Europa League and UEFA Conference League”, and “the season coefficients from the five most recent seasons are used to determine the positions of the associations in the access list” — the 2026/27 access list uses seasons 2020/21 to 2024/25. The live table could not be fetched for this page, and two secondary transcriptions of the 2026 standings disagree on the order of Germany and Spain behind England and Italy, so the top-five order is stated here as unverified. Concacaf publishes a Concacaf Club Ranking, led by Toluca at the time of writing in September 2026, and CONMEBOL a club ranking in which Palmeiras and Flamengo were first and second for 2026.^{[36] [37] [38] [39] [40]}

There is no official ranking of the world’s leagues. The IFFHS — founded in 1984, Zürich-based, and with no affiliation with FIFA, though FIFA has cited its records — named Italy’s Serie A the strongest league of 2024 with 1,992 points, ahead of Spain (1,885), England (1,871), Brazil (1,859) and Germany (1,606), without stating its method. In basketball, EuroLeague access is by licence rather than by ranking: Euroleague Basketball, the competition’s own company rather than FIBA, runs it; thirteen shareholder clubs hold long-term licences and the remaining places go to associated clubs on annual licences, two of them the previous season’s EuroCup finalists.^{[41] [42] [43]}

The US legal definition

The P-1A statute, INA §214(c)(4)(A) as amended by the COMPETE Act of 2006, admits an athlete who “(I) performs as an athlete, individually or as part of a group or team, at an internationally recognized level of performance; (II) is a professional athlete, as defined in section 1154(i)(2) of this title; (III) performs as an athlete, or as a coach, as part of a team or franchise that is located in the United States and a member of a foreign league or association of 15 or more amateur sports teams”, subject to three conditions of which the third is that “a significant number of the individuals who play in such league or association are drafted by a major sports league or a minor league affiliate of such a sports league”; or “(IV) is a professional athlete or amateur athlete who performs individually or as part of a group in a theatrical ice skating production”. The definition borrowed at (II) is INA §204(i)(2): “the term ‘professional athlete’ means an individual who is employed as an athlete by — (A) a team that is a member of an association of 6 or more professional sports teams whose total combined revenues exceed $10,000,000 per year, if the association governs the conduct of its members and regulates the contests and exhibitions in which its member teams regularly engage; or (B) any minor league team that is affiliated with such an association.” The statute uses the phrases “major sports league” and “minor league affiliate” only in clause (III)(cc), and defines neither.^{[1] [2] [3]}

The regulation is older than the statute it now serves. 8 CFR 214.2(p)(4)(ii)(A) requires that a P-1 athlete “must have an internationally recognized reputation as an international athlete or he or she must be a member of a foreign team that is internationally recognized”, coming “to participate in an athletic competition which has a distinguished reputation”; (B) requires “a tendered contract with a major United States sports league or team, or a tendered contract in an individual sport commensurate with international recognition in that sport”, plus two of seven documents — “evidence of having participated to a significant extent in a prior season with a major United States sports league”, international competition with a national team, a prior season in US intercollegiate competition, a written statement from an official of the sport’s governing body, a written statement from a member of the sports media or a recognized expert, “evidence that the individual or team is ranked if the sport has international rankings”, or a significant honor or award. “Internationally recognized” is defined at 214.2(p)(3) as “a high level of achievement in a field evidenced by a degree of skill and recognition substantially above that ordinarily encountered, to the extent that such achievement is renowned, leading, or well-known in more than one country.” The phrase “major United States sports league” is not defined anywhere in the section, and “minor league” does not appear in 214.2(p) at all: the regulation still reflects the pre-2006 rule.^[4]

The USCIS Policy Manual, Volume 2, Part N, Chapter 2, contains no discussion of major leagues, minor leagues or affiliation; its Section A.2 is titled “COMPETE Act [Reserved]” and is empty, and its footnote refers readers to the statute. Its evidentiary discussion lists as considerations “the level of viewership, attendance, revenue, and major media coverage of the events”, “the extent of past participation by internationally recognized athletes or teams”, “the international ranking of athletes competing”, and “documented merits requirements for participants”. USCIS’s public P-1A page restates the statute — “a team that is a member of an association of six or more professional sports teams whose total combined revenues exceed $10 million per year” or “any minor league team that is affiliated with such an association” — and gives an individual athlete up to five years initially and ten in total, a team one year at a time. The Foreign Affairs Manual adds at 9 FAM 402.14-4(2) that “an athletic competition or entertainment event may include an entire season of performances”, and notes that the COMPETE Act “outlined four different ways that an applicant may qualify for P-1A classification”. The O-1A regulation’s definitions at 8 CFR 214.2(o)(3)(ii) contain no league language at all: extraordinary ability in athletics is “a level of expertise indicating that the person is one of the small percentage who have arisen to the very top of the field of endeavor”.^{[4] [5] [6] [7]}

Other countries

The United Kingdom’s International Sportsperson route “is for elite sportspersons or qualified sports coaches who are internationally established and can make a significant contribution to the development of their sport at its highest level in the UK”; the sport’s governing body issues the endorsement, confirming that the applicant “is internationally established at the highest level”, and grants run up to twelve months or up to three years. For men’s football The FA’s criteria award an automatic pass for senior international minutes at thresholds set by FIFA-ranking band, and otherwise a points system in which “if the Player achieves 15 points or more … a new or Extended GBE will be granted”, ten to fourteen points may go to an Exceptions Panel, and points come from domestic and continental minutes, league position and the band of the current club’s league; the Premier League and EFL Championship each have up to four Elite Significant Contribution places.^[8] [9]

Spain’s labour law defines the professional athlete without reference to tier: under Real Decreto 1006/1985, “son deportistas profesionales, quienes, en virtud de una relación establecida con carácter regular, se dediquen voluntariamente a la práctica del deporte por cuenta y dentro del ámbito de organización y dirección de un club o entidad deportiva a cambio de una retribución”. The separate “deportista de alto nivel” status under Real Decreto 971/2007 is a sports-administration list, not an immigration route, and excludes non-resident foreigners. Australia’s subclass 408 Sporting Activities stream “allows you to play, coach, instruct or adjudicate for an Australian team, or do high level sports training with a sporting organisation” for up to two years, with no definition of “high level”. Canada allows “professional or semi-professional athletes working for Canadian-based teams” to be exempted from the labour-market impact assessment under R205(b), code C20, and names the leagues it has in mind: “the National and American Hockey Leagues, the Canadian Football League, Major League Baseball and its affiliates at the A, AA and AAA levels, the National Basketball Association, the Canadian Soccer League, Major League Soccer” — the AHL and the MLB affiliates listed alongside the majors. Japan admits professional athletes under the Entertainer (興行) status, whose examples include “プロスポーツ選手” and whose periods of stay are three years, one year, six months, three months or thirty days.^{[10] [11] [12] [13] [14] [15]}

Vocabulary

Top tier, top flight and first division are synonyms; the second tier is the Championship, Segunda, 2. Bundesliga, Ligue 2, Serie B, Primera Nacional or, in Mexico, the Liga de Expansión MX. A reserve team, B-team, second team, equipa B or Zweite Mannschaft is a subordinate side of the same club in the same pyramid; a farm club or affiliate is a separate club bound to a major-league franchise by licence or agreement. An independent league is one outside that system — MLB’s term for the four it recognises is Partner League. In US soccer the sanctioning body is US Soccer, whose Professional League Standards could not be located on its site for this page; the secondary account is that MLS is sanctioned as Division I, the USL Championship as Division II, and USL League One and MLS NEXT Pro as Division III, with minimum team counts, stadium capacities, market sizes and owner net worth for each, and that “teams and leagues are not linked by a system of promotion and relegation”. In US immigration law the operative phrases are “major sports league”, “minor league affiliate” and “minor league team that is affiliated with such an association” — and the only one of them that is defined is the last, by the six-team, ten-million-dollar test.^{[2] [23] [44]}