The 2026 World Cup is set to be the longest in the tournament's history, lasting a total of 38 days. This World Cup marks a significant change from previous editions, where only 32 teams participated, as it will feature 48 national teams. This expansion necessitates a more extended tournament calendar to ensure that athletes receive adequate rest and that logistical arrangements between the host cities are managed effectively. The tournament will commence on June 11, 2026, with the final scheduled for July 19, 2026.

In terms of structure, the tournament will include a preliminary phase comprising twelve groups of four teams each. This modification ensures that each participating team will play at least three matches before any possibility of elimination occurs. The introduction of an additional knockout round, specifically the Round of 32, is a critical factor contributing to the overall length of the tournament.

The transition to a longer event not only enhances the competition but also reflects the growing popularity of soccer globally. By accommodating more teams, the FIFA World Cup aims to include a broader representation of countries and engage a larger audience. The changes come at a time when UEFA and other leagues are also expanding their formats, hinting at a trend toward longer and more inclusive sporting events.