Which of these trainers have NOT saddled back-to-back winners of the Breeders’ Cup Distaff?

Which of these trainers have NOT saddled back-to-back winners of the Breeders’ Cup Distaff?

Which of these trainers have NOT saddled back-to-back winners of the Breeders’ Cup Distaff? [324 votes total]
D. Wayne Lukas (56)	17%
Ronald L. McAnally (82)	25%
Claude R. McGaughey III (71)	22%
William I. Mott (46)	14%
John A. Shirreffs (69)	21%