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Des Moines' Most Complete Indoor Baseball & Softball Training Center
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Grand Slam USA has over 25 years of Experience, Training Baseball & Softball Athletes, in the Greater Des Moines Area. Balancing Fundamentals, Creating Self-Awareness, & Working through Drills to Develop Technique.
Iowa Slammers Winter Workouts are Underway!
Turf Space Available
Space is going fast for the off-season. Reserve today!
Strength and Conditioning
Winter Session Registration Available!
Iowa Slammers Winter Workouts are Underway!
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