1970 U.S. Clay Court Championships

The 1970 U.S. Clay Court Championships was a combined men's and women's tennis tournament that was part of the Grand Prix. It was held at the Woodstock Country Club in Indianapolis, Indiana in the United States and played on outdoor clay courts. It was the 2nd edition of the tournament in the Open Era and was held in from 27 July through 2 August. Cliff Richey and Linda Tuero won the singles titles.

Men's singles
🇺🇸 Cliff Richey defeated 🇺🇸 Stan Smith 6–2, 10–8, 3–6, 6–1

Women's singles
🇺🇸 Linda Tuero defeated 🇫🇷 Gail Chanfreau 7–5, 6–1

Men's doubles
Clark Graebner / 🇺🇸 Arthur Ashe defeated Ilie Năstase /  Ion Țiriac 2–6, 6–4, 6–4

Women's doubles
🇺🇸 Rosie Casals / 🇫🇷 Gail Chanfreau defeated 🇦🇺 Helen Gourlay / Pat Walkden 6–2, 6–2