Center For Athletic Safety at the University of Tennessee Experiment 


The Center for Athletic Safety, located at the University of Tennessee, concluded testing on Grand Slam Safety’s SPECTO® fencing. In side-by-side testing the SPECTO® system vastly out performed chain-link fencing in impact absorption and athlete safety.

University of Tennessee safety test between specto and chain link fencing

Details of the Experiment


A 20 lb. medicine ball was dropped from four specific heights to simulate impact velocities of different weighted athletes. A hydraulic lift was utilized to ensure the drop height of the medicine ball could be adjusted accurately.

Four different locations of both the SPECTO® fence and the chain-link fence were tested for impact:

  1. Cable/Horizontal Post (middle section of the tension cable for the SPECTO® fences and the middle section of the horizontal pole for the chain link fence)

  2. Panel (the center of third fence panel from the foul pole)

  3. Edge Panel (the center of the fence panel closest to the foul pole)

  4. Hook and loop Seam/Chain Link Post (in the middle of the SPECTO® fence hook and loop seam and the middle of the vertical chain link post)

SPECTO® testing at The Center for Athletic Safety,  University of Tennessee,

SPECTO® testing at The Center for Athletic Safety, University of Tennessee,

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Safety Testing Conclusions


  • Running into a SPECTO® fencing system absorbs more of the impact forces compared to the chain link

  • The F355 E missile were not used on the chain link fence due to the values being too high and the potential for damaging the F355E missile device; however, the values would be much higher then those found on the SPECTO® fences

  • One of the NFL Mandatory Practices that all wall padding surrounding playing field has to be below 100 Gmax with the CIST, all SPECTO® system fences were below the NFL standard for wall padding surrounding the playing field

  • When using a SPECTO® outfield fence system, athletes may no longer worry about risking an injury when running into the outfield fence

The entire report can be viewed upon request by contacting us. We’d be happy to discuss how the SPECTO® systems can benefit the safety of your athletes.

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