The Women's World Cup Goes to 48 in 2031, and Inherits the Men's Arithmetic

The decision, and the arithmetic it imports

FIFA confirmed in May 2025 that the 2031 Women’s World Cup will field 48 teams rather than 32, across 12 groups, with matches rising from 64 to 104. The United States hosts, with Mexico confirmed as co-host.

Twelve groups of four is the same structure the men’s tournament adopted for 2026 — which means the women’s tournament inherits the same problem and, presumably, the same solution.

Twelve groups produce 24 group winners and runners-up. A knockout bracket needs 32. The gap of eight is filled by the best third-placed teams, ranked across groups they never shared. See the 48-team World Cup format for why FIFA arrived there and why the alternative — sixteen groups of three — was rejected on integrity grounds.

Expansion means something different here

For the men’s tournament, expansion was largely about access: more nations reaching a finals that had been effectively closed to most of the world.

For the women’s tournament, the argument is about development, and it is stronger.

Women’s football’s constraint is not that too many good national teams are excluded. It is that most federations invest almost nothing, and the calculation behind that is circular: no realistic prospect of a World Cup means no reason to fund a national team, which guarantees no prospect of a World Cup.

Expanding the finals breaks the loop from the outside. A federation that can plausibly reach 48 has a reason to fund a programme, hire coaches, and run a domestic league — and those things, not the finals themselves, are what actually develop players.

FIFA’s own framing says exactly this: broader representation, more nations and players reaching elite competition, and accelerated investment.

The obvious objection

Expanding a tournament where the competitive gap is already wide risks producing more one-sided matches, and the women’s game has recorded some extraordinary scorelines at previous finals.

That criticism is fair, and it should be held alongside two things.

First, the gap has narrowed sharply. Recent tournaments have produced upsets and group-stage eliminations of established teams that would have been unimaginable a decade earlier — largely because the previous expansion, to 32 in 2023, did what expansion is supposed to do.

Second, the alternative is not a tournament of 32 evenly matched nations. It is a tournament of 32 in which the same federations continue to be the only ones investing.

Compare March Madness at 76, where the same argument runs the other way: in a mature, well-funded competition, the marginal teams added are genuinely the ones least deserving. In an under-invested sport, the marginal teams added are the ones with the most to gain.

104 matches is a scheduling problem

The tournament roughly doubles in size, and the hosting plan expands with it — additional stadiums and cities, with the possibility of a wider CONCACAF footprint.

That is a real cost and it lands on the hosts. A 104-match tournament requires venues, training bases, accommodation and domestic travel on a scale the women’s game has never needed, and the revenue to justify it is not yet certain to be there.

It also stretches the calendar for players whose club seasons are already congested and whose leagues, in most countries, are not resourced to give them a long off-season.

What to watch for

Two things will determine whether the expansion works as intended.

Slot allocation. Sixteen additional places distributed toward confederations with developing programmes would serve the stated aim. Distributed toward confederations that already qualify well would not. The regulations will say which.

Investment following qualification. The theory is that a realistic World Cup place causes federations to fund women’s football. That is a claim about behaviour, and it can be checked — by whether newly qualified nations build leagues and pathways, or simply assemble a squad every four years.

For the men’s version of the same decision, see the 48-team World Cup format, and for how nations reach either tournament, world cup qualification.