Abstract: A racket-stringing machine equipped with tensioning apparatus featuring a one-way clutch which eliminates the need to pull tension more than once per reach of string on the racket. The tensioning apparatus consists of a pair of grippers which grip and hold the strings. The apparatus further has a cylindrical member with a lever to which are attached weights. The clutch and the cylindrical member are attached by way of a coiled spring. The coiled spring is wrapped around a hub on the clutch and attached, at its end, to the cylindrical member. This construction allows the clutch and cylindrical member to rotate together in one direction while at the same time allowing only the clutch to rotate in the opposite direction.