With 30 Major League Baseball teams playing a 162-game schedule, there are a total of 2,430 contests that will take place in the 2026 MLB season. However, just two of those will take place outside the United States or in Toronto, and they will be held in Mexico City this weekend. It is the 2026 Mexico City Series, which begins on Saturday between the Arizona Diamondbacks and San Diego Padres. The two-game international slate will conclude on Sunday as MLB plays just its fifth and sixth regular-season games ever in the capital of Mexico.
The rare, two-day weekend series will take place at Estadio Alfredo Harp Helú, the home ballpark of the Diablos Rojos del México of the Mexican Baseball League. The Diamondbacks are the designated home team, and both squads will play in front of a much smaller-than-normal crowd. The ballpark has a capacity of around 20,000, compared to Arizona’s Chase Field, which holds more than 48,000 spectators.
