A handle assembly for a leash system includes an outer housing that defines a handle interior and an inner housing that is positioned within the handle interior. The leash system includes a tether. The outer housing can be substantially spherical. The inner housing selectively moves between unlocked and locked positions. When in the locked position, the inner housing inhibits movement of the tether relative to the handle assembly in a first direction but not in a second direction that is substantially opposite the first direction. The inner housing can be biased towards one of the unlocked and the locked position. The inner housing includes a tether engager that selectively engages the tether. The handle assembly includes an inner housing mover that is connected to the inner housing so that the inner housing mover moves the inner housing between the unlocked and the locked position.
