Soccer

The domestic league

Each country runs its own league pyramid. The top division is a round-robin: every club plays every other club, usually twice — once at home and once away. A win is normally worth three points and a draw one, a convention adopted across most of the world during the 1990s because it rewards attacking play more than the older two-points-for-a-win system.

The final table decides the season, not a post-season bracket. That makes the league table itself the competitive object, and it is why the closing weeks of a season can matter to clubs with nothing left to win: a mid-table club may still be playing for a qualification place, and a lower club for survival.

Promotion and relegation

Instead of a playoff to decide who competes at the top level next season, most leagues move clubs between divisions. The bottom clubs of a division are relegated and replaced by the top clubs from the division below. The exact number varies by country, and many leagues route the final promotion place through a short end-of-season play-off between clubs that finished just outside the automatic spots.

This is the single biggest structural difference from North American leagues. There is no draft, no salary cap shared across the pyramid in most countries, and no guarantee that a club stays in the top division.

National cups and the domestic double

Running alongside the league is a knockout cup, usually open to clubs from several divisions — which is why a lower-division club can meet a top-division one. Ties are often single matches, sometimes decided by extra time and penalties, and sometimes played over two legs with the scores added together. In a two-legged tie, an away goals provision once broke deadlocks in many competitions; several have since abolished it, so it must be checked per competition rather than assumed.

A club that wins both its league and its main domestic cup in the same season is said to have completed a domestic double.

Continental club competition

Clubs qualify for continental tournaments through their domestic league position, and sometimes through winning a domestic cup. Qualification places are allocated to each country by the confederation that runs the tournament, and the allocation shifts over time according to how that country's clubs have performed. That is why a league can announce a change in how many of its clubs enter a given continental competition from one season to the next.

International football

National teams compete separately from clubs, in continental championships and in the World Cup. International tournaments typically begin with a group stage — small groups playing a round-robin, with a set number of teams advancing — followed by a knockout phase. The number of teams in the finals, and therefore the number of groups, is set by the governing body and has changed more than once, so the current format is a figure to verify rather than assume.

What decides a league table

Points first. When clubs finish level, competitions apply tie-breakers, and these differ by competition, which is a common source of confusion. The usual order is:

• Goal difference — goals scored minus goals conceded across the season.
• Goals scored — where goal difference is equal, the higher-scoring club ranks above.
• Head-to-head record — some competitions compare only the matches between the tied clubs, and a few apply it before goal difference.
• A play-off — a handful of competitions settle a decisive tie with a dedicated match.

Because the order is not universal, two leagues can rank identical records differently. Always read the competition's own tie-breaker rules rather than assuming the sequence above.