Eccentric hamstring strength and 2 types of hamstring to quadriceps ratios (conventional, functional) at 2 velocities were examined for 42 athletes with a history of hamstring injury. The authors used the Biodex System 3 for eccentric/concentric knee flexion and extension at 1.05 and 3.14 rad·sEccentric hamstring strength and 2 types of hamstring to quadriceps ratios (conventional, functional) at 2 velocities were examined for 42 athletes with a history of hamstring injury. The authors used the Biodex System 3 for eccentric/concentric knee flexion and extension at 1.05 and 3.14 rad·s−1and knee flexion endurance of 30 reps at 3.14 rad·s−1. The authors assessed the differences between side (injured or uninjured) and division (Division I or III) for the peak torque per body weight and ratio variables and included repetitions (1–5 and 26–30) for the endurance measurement. The authors found division differences for peak torque per body weight at 1.05 rad·s−1(Division I was higher) and for division for functional hamstring to quadriceps ratios (Division III was higher at 3.14 rad·s−1only) and repetition changes (repetitions 1–5 were higher than repetitions 26–30) for total work. The injured side is comparable with the uninjured side when examining values at approximately 9 months from injury; however, differences should be examined immediately on return to play.