...potential between-leg deficits in horizontal force may not be considered during testing due to the bilateral nature of sprinting. ...this study aimed to establish the reliability of unilateral tests assessing explosive hip extension and horizontal force production, and their association with sprinting performance. Reliability was established by calculating typical error (TE), coefficient of variation (TE%), interclass correlation coefficient (ICC) and minimal detectable change (MDC). Results Test re-test reliability was good to excellent for the scooter (TE%= 1.7-4.6; ICC= 0.88-0.94), moderate for the isometric hip extension (TE%= 5.6-6.0; ICC = 0.65-0.69) and good for the hamstring switch (TE%= 3.4-4.7; ICC = 0.78 to 0.87) and single hop for distance (TE%= 4.7-5.7; ICC= 0.78-0.86).