The Aptos Open is a defunct tennis tournament that was played on the Grand Prix tennis circuit in 1973 was co-valid as the U.S. Hard Court Championships . The event was held in Aptos, California and was played on outdoor hard courts at the Seascape Racket Club. Jeff Austin won the singles title while Jeff Austin and Fred McNair partnered to win the doubles title.

Past finals

Singles

YearChampionRunner-upScore
1973United States Jeff AustinNew Zealand Onny Parun7–6, 6–4

Doubles

YearChampionRunner-upScore
1973United States Jeff Austin United States Fred McNairSouth Africa Raymond Moore New Zealand Onny Parun6–2, 6–1