SpinGrip is data-proven to enhance every major throwing metric. It is for every arm.

The following is a summary of results of a performance data test of SpinGrip on key throwing metrics.

Study Design Overview

Study Type: Internal controlled performance evaluation

Participants: 10 randomly selected athletes

Sports Background: Throwing athletes (baseball / softball / football applicable)

Test Environment: Same facility, same throwing distance, same equipment per athlete

Throws per Condition: 10 throws per athlete per test tier

Total Throws per Athlete: 30 throws

Each athlete served as their own performance baseline, allowing direct comparison across test conditions while minimizing external variability.

Metrics Measured

The following metrics were recorded for each throw and summarized as average, maximum, and minimum values per athlete and test tier:

• Velocity (mph)
• Spin Rate (rpm)
• Accuracy (% of throws hitting a defined target zone)
• Extension (inches at ball release)

Test Protocol

Pre-Test Controls

• All athletes completed a full standardized warm-up prior to data collection
• Baseline testing occurred only after athletes reached full throwing readiness
• Athletes were instructed to maintain a consistent, controlled effort level across all test tiers to isolate the effect of SpinGrip rather than changes in intent

Test Tiers

1. Baseline (No SpinGrip)

• Athlete throws 10 pitches/throws without SpinGrip
• All metrics recorded

Establishes individual performance baseline

2. During SpinGrip Use

• Athlete wears SpinGrip
• Athlete throws 10 pitches/throws at the same intended output level as baseline

All metrics recorded

3. Post-SpinGrip (Immediate Removal)

• SpinGrip is removed immediately after use
• Athlete throws 10 pitches/throws

All metrics recorded

Evaluates retained mechanical or neuromuscular improvements

Data Analysis Approach

Metrics analyzed per athlete and across the full group

Direct comparisons made between:

Baseline vs. During SpinGrip

Baseline vs. Post-SpinGrip

Results summarized using:

Average values

Maximum values

Minimum values

Key Findings Summary

Overall Results

• 10 out of 10 athletes demonstrated net improvement in throwing metrics when evaluated across SpinGrip use and post-removal conditions
• All four performance metrics—velocity, spin rate, accuracy, and extension—showed group-level increases.
• Improvements were observed not only in peak outputs, but also in minimum values, indicating improved consistency and repeatability, and may even suggest SpinGrip decreases arm stress and fatigue, but arm health will be a separate study.

Observed Performance Ranges (Post-SpinGrip vs. Baseline)

Across the athlete group, the following performance improvements were observed relative to baseline:

Velocity: +2 to +7 mph

Spin Rate: +75 to +350 rpm

Extension: +2 to +6 inches

Accuracy: +20% to +30%

These results indicate that SpinGrip produces meaningful and coach-relevant gains in both raw performance and command-based metrics.

Notable Athlete Response Pattern

One athlete experienced a temporary decrease in select metrics while actively using SpinGrip

After immediate removal of SpinGrip, this athlete demonstrated improvements across all measured metrics compared to baseline.

This pattern suggests SpinGrip can enhance mechanical awareness and release feedback, resulting in improved execution once the athlete transitions back to unassisted throwing

*Importantly, no athletes demonstrated a net decline when post-removal performance was considered.

Interpretation

Results from this internal evaluation indicate SpinGrip:

• Positively influences key throwing performance metrics
• Enhances mechanical efficiency and repeatability
• Raises the minimum performance floor across throws, suggesting an enhance in stamina and consistency
• Improves accuracy at a level that directly translates to competitive performance (20–30% gains)
• Serves as both a performance enhancer and a skill-transfer training tool
• An important observation was the consistent elevation of minimum metric values. Even when maximum output gains were modest, athletes demonstrated tighter performance ranges and improved reliability across repeated throws.
• *This suggests SpinGrip may support improved fatigue management, motor pattern consistency, and sustainable output over time.

Considerations

Sample size limited to 10 athletes

Testing conducted internally under controlled conditions

Results are intended to provide transparent, coach-facing performance data and to support broader adoption and future third-party evaluation.

Athlete Perception Survey Results

Survey Overview

Participants: Same 10 athletes included in performance testing

Format: 10-question survey

Response Scale: Likert scale (Strongly Disagree → Strongly Agree)

Survey Focus Areas

Athletes responded to the following 17 perception statements using a Likert scale (Strongly Disagree → Strongly Agree):

1. After using SpinGrip, I felt I had higher spin on my throws.

2. After using SpinGrip, I felt better control of each throw.

3. After using SpinGrip, I felt I had more extension on my release.

4. After using SpinGrip, I felt my release was more effortless.

5. After using SpinGrip, I felt my throws were traveling with more velocity.

6. After using SpinGrip, I felt more friction on my fingertips when throwing.

7. After using SpinGrip, I felt one or more positive “light bulb” moments regarding my grip and/or release.

8. After using SpinGrip, I felt less stress on my arm (elbow, forearm, shoulder included).

9. After using SpinGrip, it felt easier to generate spin.

10. After using SpinGrip, it felt easier to generate velocity.

11. During or after using SpinGrip, my throws visually had more “life” or stronger ball flight.

12. After using SpinGrip, my confidence in throwing improved.

13. After taking the SpinGrip off, I still felt the effects.

14. After taking the SpinGrip off, my release felt the best it has ever felt.

15. After taking the SpinGrip off, it felt like my hand got bigger.16. 17. After taking the SpinGrip off, I could feel the seams on the ball better.

16. After taking the SpinGrip off, the ball felt smaller.

Survey Results

100% of participants responded with “Agree” or “Strongly Agree” to all survey questions

No neutral or negative responses recorded

These subjective results align with objective performance data and reinforce SpinGrip’s value as both a physical and perceptual training aid.

Training Frequency and Skill Development

Observations suggest that consistent SpinGrip use accelerates the development of repeatable, high-quality throwing mechanics.

With continued integration into training routines, athletes reinforce optimal release patterns that persist even after the product is removed.

Implementation Recommendations for Programs

- Integrate SpinGrip into warm-up and skill-development routines

- Use during controlled throwing sessions emphasizing spin, accuracy, and release mechanics

- Track athlete metrics longitudinally

- Pair SpinGrip use with targeted coaching cues for maximum effectiveness

How to Get the Absolute Most Out of Your SpinGrip

Here are 5 IMPORTANT TIPS to ensure coaches, programs, and facilities get the maximum benefit from SpinGrip training:

1. Put the SpinGrip on from the VERY FIRST throw

This sets the standard for an optimal release from the very beginning of the session. Establishing the correct feel early allows

the athlete’s nervous system to lock into efficient mechanics immediately.

2. Stay patient and trust the process

It may take the entire session to fully get used to SpinGrip—and that is expected. Keep the SpinGrip on until the athlete is fully trusting it and the arm is relaxed and free. Do not “baby” the SpinGrip. Throw naturally and let the ball fly.

3. Earn the right to take it off

Once the athlete is operating at full capacity (approximately 90–100% intent) with confidence and control, they are qualified to remove the SpinGrip.

4. Continue throwing immediately after removal

After taking the SpinGrip off, continue throwing without interruption. This is when athletes experience the feel of an optimal,

pure, fully efficient release that can become their new normal. Many athletes report this as a sensation they have never felt before.

5. Use consistently to make elite-level feel automatic

The more SpinGrip is used daily or weekly, the more this elite-level release feel becomes automatic.

Over time, muscle memory is established and the improved mechanics persist without the device.This tool is proven. By proven, we mean internal data testing has shown athletes experience improvements in every major throwing category—including spin, velocity, accuracy, extension, and arm health–related indicators—when SpinGrip is implemented with intentionality and consistency.

Guaranteed Results

The results outlined in this report were not accidental. They were produced when SpinGrip was used with intentionality, consistency, and correct sequencing.

Coaches, programs, and facilities that follow the guidance below can reliably reproduce the same outcomes observed in testing.

Result-Guarantee Conditions

SpinGrip delivers consistent improvements when all three conditions are met:

1. Early Introduction

SpinGrip must be introduced at the very beginning of throwing sessions so the athlete’s nervous system calibrates to an optimal release pattern from the start.

2. Sufficient Exposure

Athletes must remain in SpinGrip long enough to fully trust the feel and allow the arm to relax. Rushing removal limits the learning effect.

3. Immediate Transfer

Removing SpinGrip and continuing to throw without delay is mandatory. This step locks in motor learning and transfers the improved mechanics to unassisted throws.

What Programs Can Expect when these conditions are followed:

Athletes consistently improve spin, velocity, accuracy, and extension

Minimum performance levels rise, increasing reliability, command, and consistent output

Mechanical efficiency improves without added arm stress

Positive effects persist after SpinGrip is removed

Outcome Assurance Statement

SpinGrip is a results-driven training tool, not a passive aid. Internal data testing demonstrates that athletes experience improvements across every major throwing category when SpinGrip is implemented as intended.

Programs that follow this model are not hoping for results — they are engineering them.