Amelia Earhart

Six months ago at Chester, she won again in the kind of fashion that catches the eye of serious observers. O'Brien noted afterwards that the step up to a longer distance suited her perfectly — she stayed the trip, handled the ground, and hit the line well. Her jockey Ryan Moore, one of the best in the world, reported that she had the stride and temperament of a genuinely nice filly. Since then, however, she hasn't won, finishing sixth, sixth, fifth, fifth, third, and sixth in her last six races. That's the frustrating bit: the talent is clearly there, but she's gone through a lengthy spell without finding the winner's circle again. It's not uncommon for young horses to plateau briefly, and at her age with her pedigree — she's by Camelot and comes from a family O'Brien knows well — there's every reason to think another win will come. The fact that she's still racing regularly suggests the yard believes there's more to come.