Mary-Ann Eisel
Mary–Ann Eisel is an American former tennis player. She was the US Open mixed doubles champion in 1968.
Personal life
Eisel was born in St. Louis, Missouri, and was educated in the Ladue School District, and went on to Washington University in St. Louis. In 1969, she married fellow tennis player Peter Curtis, who was also her Mixed Doubles partner. Following their divorce, she married Don Beattie on May 12, 1972.In addition to her tennis career, Eisel was a talented amateur golfer.
Career
Eisel reached the finals of the 1967 women's doubles U.S. National Championships at Forrest Hills with Donna Floyd but lost in three sets against Rosemary Casals and Billie Jean King.In 1968 she won the US Open mixed doubles title with Peter Curtis by defeating Tory Fretz and Gerry Perry in straight sets. In 1969 she won the singles title at the Surrey Grass Court Championships, defeating Judy Tegart in three sets. She won the doubles title at the 1971 British Hard Court Championships with Françoise Dürr, defeating Margaret Court and Evonne Goolagong in the final.
In 1968 and 1970 she played for the US Federation Cup team, reaching the semifinals of the World Group on both occasions, and compiled a record of five wins and four losses.
In 1974, she was a team member of the Detroit Loves, which won the Central Section Championship in the inaugural season of the newly created World Team Tennis league in the United States. The following year, 1975, she played for the Hawaii Leis.
Grand Slam finals
Doubles (1 runner-up)
| Result | Year | Championship | Surface | Partner | Opponents | Score |
| Loss | 1967 | U.S. Championships | Grass |  Donna Floyd | Rosemary Casals Billie Jean King | 6–4, 3–6, 4–6 |
Mixed doubles (1 title)
| Result | Year | Championship | Surface | Partner | Opponents | Score |
| Win | 1968 | US Open | Grass |  Peter Curtis | Tory Fretz Gerry Perry | 6–4, 7–5 |