The 1975 U.S. Clay Court Championships was a combined men's and women's Grand Prix tennis tournament held in Indianapolis in the United States and played on outdoor clay courts. It was the seventh edition of the tournament and was held from August 4 through August 11, 1975. Third-seeded Manuel Orantes won the men's singles title and the accompanying $16,000 first prize money while Chris Evert won the women's singles title.[1] [2]
See main article: 1975 U.S. Clay Court Championships – Men's singles. 
Manuel Orantes defeated 
Arthur Ashe 6–2, 6–2
See main article: 1975 U.S. Clay Court Championships – Women's singles. Chris Evert defeated 
Dianne Fromholtz 6–3, 6–4
See main article: 1975 U.S. Clay Court Championships – Men's doubles. Juan Gisbert / Manuel Orantes defeated 
Wojciech Fibak / Hans-Jürgen Pohmann 7–5, 6–0
See main article: 1975 U.S. Clay Court Championships – Women's doubles. Fiorella Bonicelli / 
Isabel Fernández defeated 
Gail Chanfreau / Julie Heldman 3–6, 7–5, 6–3