Complex sentence: On the first Friday of May, Aztec Hill acted up in the post parade and was very fractious in the gate at Churchill Downs and never recovered as she finished a distant and disappointing seventh in the Kentucky Oaks.
Split into simpler sentences: On the first Friday of May, Aztec Hill acted up in the post parade and was very fractious in the gate at Churchill Downs. She never recovered as she finished a distant seventh in the Kentucky Oaks.