Opening Day Mariners 2025. Updated march 30, 2023 12:58pm pdt. Opening day for major league baseball (mlb) is thursday, and the mariners will open the 2024 season with a home series against the boston red sox.

Anytime mlb does something like this, it makes for a very special experience. The 2024 mlb season began in korea with the dodgers and padres meeting in the seoul series, followed by all 30 clubs slated to play on opening day on.