Baseball Golf Bundles

TheStack Baseball

TheStack is baseball’s most effective bat speed training system — and the numbers back it up.

We've tracked over 250,000 swings from our dedicated players, and so far, Stackers who have completed at least 1 program have gained an average of 4.5 MPH of bat speed.

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TheStack Baseball - Includes integrated Speed Sensor and Award Winning App

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Stack Baseball & Golf | Multisport Family Bundle

Sale price Price $699.00 Regular price ~~$987.00~~ Unit price per

TheStack Golf (Size)

TheStack Baseball (Size)

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Dynamic Training Programs

Customized variable inertia speed training - the most efficient way to increase your bat speed. The algorithms that power the dynamic programming come from years of research by leading sports scientist, Dr. Sasho MacKenzie.

Your Personal Speed Trainer

Be guided through scheduled workouts while tracking Stack weight, rest, recovery, and performance gains. This information allows future workouts to be adjusted behind the scenes, so your training is optimized to maximize bat speed gains.

Tracking & Sharing Metrics

Track key performance metrics such as Stack Speed, Distance Potential, Bat Speed and Grit Score. Easily share your progress and gains.