At age 11 she won the junior U.S. Hardcourt Championships singles title. She became junior singles champion at the
1957 Wimbledon Championships after beating
Rosie Reyes in the final. Between 1957 and 1968 Arnold competed in five
Wimbledon Championships. Her best singles result was reaching the quarterfinal in
1958 where she was lost to sixth-seeded
Zsuzsa Körmöczy in three sets. In doubles she reached the quarterfinals in 1966, partnering compatriots
Jane Albert. ==References==