Sears won the women's doubles at the
U. S. Women's National Championships four times, including three consecutively (
1915–
1917). In singles, she was a finalist in
1912, where she was beaten in straight sets by
Mary Browne. She teamed with
Willis E. Davis to take the national
mixed doubles championship in 1916. In August 1938 at the age of 56, she lost to
Dorothy Bundy in the second round of the Essex County Club Invitational in Manchester, Massachusetts 6–0, 6–1. She lived in Boston, and eventually inherited a waterfront mansion known as “Rock Edge" in Beverly, MA to use as a summer residence. In later years it became her primary residence, and she was living there when she died in 1968. She purchased the
Burrland Farm for horses in 1955, then "deliberately gutted and burned [its mansion] down" in 1961 to reduce property taxes. She sold the farm in 1966. She was inducted into the
International Tennis Hall of Fame in 1968, joining her uncle
Richard (inducted 1955). (1921) Eleonora Sears rode horses competitively and was elected to the
U. S. Show Jumping Hall of Fame in 1992. She also owned and raced
Thoroughbred horses. She was the first woman to play polo on a men's team. She gained media attention for her long-distance walks and hikes. As well, she was one of the first American women to drive an automobile and fly a plane. ==Grand Slam finals==