How the Club World Cup works

In one line: From a seven-team appendix to a 32-team summer World Cup every four years: the format, the qualification maths and why clubs argued about it.

For two decades the Club World Cup was a curiosity: seven continental champions, one week in December, a European winner nearly every time. In 2025 FIFA rebuilt it into something genuinely different — a 32-team tournament every four years, played across a month of summer, modelled deliberately on the international World Cup. The revamp is as significant as it is contested, and understanding the format explains both halves of that sentence.

The shape of the tournament

Thirty-two clubs, eight groups of four, single round-robin group stage; the top two from each group advance to a straight knockout — round of 16, quarter-finals, semi-finals, final — with extra time and penalties for ties and no third-place play-off. It is the World Cup template applied to clubs, and that comparison is the point FIFA was making.

Who gets in: the allocation maths

The 32 places are split by confederation strength: 12 for Europe, six for South America, four each for Africa, Asia and CONCACAF, one for Oceania, plus the host-nation slot. Within UEFA, places went to Champions League winners of the qualification period plus the clubs with the best cumulative four-year coefficient — so entry rewards sustained European performance, not a single lucky cup run. The same four-year ranking logic runs across the other confederations.

The money, and the argument

The commercial scale explains the controversy: the 2025 edition carried a prize pot reported around £775m, with the winners earning up to roughly £97m — money that dwarfs the old December version and rivals the Champions League itself. The objections arrived on schedule: player unions over calendar congestion in an already packed summer; clubs outside the qualified elite over the closed-ish door (qualification is by past performance, which entrenches the rich); and rival competition organisers over territory. All three objections are about the same thing — a four-year, month-long club mega-event has to take its weeks from somewhere.

What it means on the pitch

Practically: the best European sides now have a genuine world title to play for, South American clubs get a real competitive (if financially lopsided) shot at them, and the rest of the confederations get fixtures against the elite they rarely see. Whether the tournament settles into the calendar or becomes the football version of a bridge too far is the live question — the format answers how it works; the next edition will answer whether it should.

Sources

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