The Astoria Stakes is a race for two-year-old Thoroughbred fillies that is run at what facility that first opened on May 4, 1905?
Astoria Stakes: The Astoria Stakes is a long-lived race for two-year-old Thoroughbred fillies run at Belmont Park in early June during the Belmont Stakes carnival. Belmont Park: Belmont Park is a major Thoroughbred horse-racing facility located in Elmont, New York, just outside New York City limits. Belmont Park:  It first opened on May 4, 1905.
Belmont Park