gr f Curlin - Uno Duo (Macho Uno)
Obligatory ran once as a juvenile, finishing fourth on debut at Belmont Park. She broke her maiden as a three-year-old in a Maiden Special Weight race at Gulfstream Park in February 2021.
She then went on to run fourth in the Gr.2 Fair Grounds Oaks in March. Her next race, the Gr.2 Eight Belles Stakes at Churchill Downs, she left her run until the final turn, where she was second to last, overhauling the field to win by a length, beating the favourite Dayoutoftheoffice (already a Gr.1 winner) in the final strides.
Obligatory then ran to second place, half a length behind the winner Search Results in the Gr.1 Acorn Stakes at Belmont Park on 6th June. She again placed second in the Gr.1 Cotillion Stakes at Parx Racing, two and a half lengths behind Clairiere on 25th September.