The Seattle Mariners are playing tonight, October 16, 2025, at their home stadium, T-Mobile Park in Seattle. They are facing the Toronto Blue Jays in Game 4 of the American League Championship Series (ALCS). The game is scheduled to start at 5:33 PM PDT (8:33 PM EDT) and will be broadcast on FS1. The Mariners are hosting the Blue Jays at home, so the game is taking place in Seattle tonight.