Houston, Miami, Tokyo and San Juan will be the host sites for the 2026 World Baseball Classic, Major League Baseball announced Wednesday.

The 20-team competition will run from March 5-17, 2026, with Japan as the defending champion.

The 16 teams that finished in the top four of their respective pools in 2023 will be invited, along with four teams advancing from qualifiers in 2025.

First-round games in Pool A will take place in San Juan, with host Puerto Rico joined by Canada, Cuba, Panama and a qualifier.

Pool B will be held in Houston, featuring the United States, Great Britain, Italy, Mexico and a qualifier.

Pool C will be in Tokyo, where three-time champion Japan will be joined by Australia, Czechia, South Korea and a qualifier.

Pool D will take place in Miami with the Dominican Republic, Israel, the Netherlands, Venezuela and a qualifier.

Quarterfinals will be held in Houston and Miami. The semifinals and final will be played in Miami.