An assembly of a ski and a device for binding a boot to the ski, the assembly including a ski having an upper surface adapted to receive the binding device. The assembly includes an anchoring device that includes a slide and a binding device that includes a base, the base bearing a mechanism for locking the boot. The mechanism includes at least one movable member controlled by a manipulable member. The anchoring device includes at least one mechanism for tightening the binding device with respect to the ski, and the tightening mechanism is implemented by moving the manipulable member its open position to its closed position.