Career
She played in the mix doubles in the early 1900s. She made it to three United States Open finals with Bill Tilden, but they lost in every final. In 1915 Ballin reached the doubles final at the United States Indoor Championships, playing with Molla Bjursted, but lost in three sets.
Ballin reached the final of the mixed doubles competition at the United States. National Championships on three occasions (1916, 1917, 1919).
In 1919 she wrote a tennis book titled Tennis for Girls. Mixed doubles (3 runners-up).