[1] He faced scrutiny in 1991 for not wanting to bring his horses to the track until race day, with some suggesting it was due to unethical practices.
[4] Accusations and suspicions arose about his success in 1993 and 1994[2] after the top five money winners were horses he had trained.
[9] He trained multiple Hall of Fame horses including, Mach Three and Precious Bunny.
[1] He also trained O'Brien Award winners Riyadh, Presidential Ball, Art Major, Cams Card Shark, Dragon Again, and Nickie Bag.
[1] Robinson's Precious Bunny and Cams Card Shark also won O'Brien Awards for Horse of the Year.