The Graston Technique® is a beneficial treatment on tendinopathies1 however, little research exists on the effects of the Graston Technique® on chronic cases of tendinopathy measured with diagnostic ultrasound. To determine the amount of changes in tendinosis, scar tissue and/or adhesions, or calcifications after the Graston Technique® treatments, fifteen athletes at NCAA division I, III, or NAIA institutions were recruited. Four days of the Graston Technique® as an overall protocol was used, including a warm-up, stretches, and strengthening exercises. Changes within the tendon were measured by diagnostic ultrasound. Lower Extremity Functional Scales (LEFS) and Numeric Pain Rating Scale (NPRS) were also used. The results showed a significant decrease of tendinosis in both axes. No significant changes were seen with tendon thickness or NPRS. There was a significant increase in the scores of the LEFS. In conclusion, the Graston Technique® protocol alone is beneficial in the treatment of tendinosis.