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Build your Speed.  Build your Strength.

Athletic skill and mechanics are only half the battle.  Do you want to enable your body to reach its maximum potential?  Whether on or off the field, a healthy and conditioned body will allow you to complete those physical tasks required of you much more efficiently.

Our programs offer strength, speed, and agility training to help you take your game to its peak performance.  Created by John Bisignano, the Director and Lead Instructor of Grand Slam Strength, you won't find a better supplemental program, whether in quality or in price, to help you reach your physical goals. 

Our Director...

John is entering his 6th year with Grand Slam U.S.A. serving as one of our managers, lead pitching instructor, and recently our strength and conditioning director with the addition of our new strength and conditioning program, Grand Slam Strength.


John is a Des Moines native, playing his high school ball at Dowling Catholic, and going on to play at Southwestern Community College, University of Nebraska-Kearney, and Grand View University, where he graduated with a degree in Kinesiology.


John has combined his background in exercise science and baseball to develop numerous new programs to help further drive our player development here at Grand Slam, and open the doors to athletes of all sports with the addition of Grand Slam Strength. Outside of Grand Slam, John enjoys spending time with his wife Maddie and their 3 pets and is a competitive powerlifter.

Credit: Alli Stuhr Photography

Credit: Mikinna Kerns, Invictus Media

Credit: Mikinna Kerns, Invictus Media

Curent Programs

*A Liability Release Waiver must be sign by all participants.  Please fill out the form below and leave with a staff member at the facility.

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