[2] One week later at Latonia, she became the second filly in its fourteen-year history to win the Kentucky Jockey Club Stakes in which she again defeated males.
[3] Mata Hari's performances in 1933 saw her retrospectively named American Champion Two-Year-Old Filly along with Edward R. Bradley's Bazaar.
She went on to win the May 23 Illinois Derby against males at Aurora Downs, breaking the track record by more than three seconds with a time of 1:49 3/5 for a mile and an eighth on dirt.
[6] For the second year in a row, Mata Hari was retrospectively named the American Champion Filly of her age group.
Sired by 1934 American Champion Two-Year-Old Colt Balladier, Spy Song won the 1945 Arlington Futurity and ran second in the 1946 Kentucky Derby.