When your father shares the record as the all-time winningest trainer in Breeders’ Cup history, championship reminiscences come easily. But Donnacha O'Brien found that hoisting the trophy for himself carried an even greater weight. That breakthrough arrived last year at Del Mar, when the former two-time Irish champion jockey secured his first Breeders' Cup victory as a trainer with Balantina in the Juvenile Fillies Turf at the age of 27.
