High Quality Content by WIKIPEDIA articles! Wheelchair tennis was first contested at the Summer Paralympics as a demonstration sport in 1988, with two events being held (Men`s and Women`s Singles). It became an official medal-awarding sport in 1992 and has been competed at every Summer Paralympics since then. Four events were held from 1992 to 2000, with mixed events (also called "quad" events) in both singles and doubles added in 2004.