Mariners Spring Training 2025 Dates. The dimensions of the strike zone will be determined by the batter's height — the top of the zone is 53.5% of the player's height, while the bottom of the zone is at 27%. Julio rodriguez and his seattle mariners teammates chill in the grass of field no.

The mariners kick off their spring training on february 21 against the san diego padres, slated for a 12:10 pm pt / 1:10 pm az first pitch at peoria stadium. This spring, mariners fans can watch more spring training games than ever before!