A conductive material of a plurality of separate conductive materials are coupled to a first participant, the conductive material configured to move when the first participant delivers an impact to a second participant. An impedance-based impact sensing mechanism including an impedance changing mechanism that changes impedance as the conductive material is moved towards and away from the impedance changing mechanism as the first participant delivers the impact. An impedance-based impact measuring scoring system determines that the impact occurred based on a change in impedance in the impedance changing mechanism.