Abstract: Various binding systems for sliding boards and skis are presented. In one example, among others, a binding system includes a boot plate assembly affixed to a boot and a mounting plate assembly. The mounting plate assembly can be affixed to a sliding board or a ski. The boot plate assembly includes a socket and a wedge attached to opposite sides of a boot plate. The mounting plate assembly includes a spring mechanism configured to engage the socket and a wedge block configured to receive the wedge. When engaged, pressure from the spring mechanism holds the boot plate assembly to the sliding board or ski. When sufficient force is applied through the boot, the boot plate assembly is released from the mounting plate assembly, which frees the rider from the sliding board or ski.