The colt not only won the Kentucky Derby, Preakness and Belmont Stakes in 1973 — he finished each in record time. It just took 39 years for that part of his incredible sweep to become official. But the dispute over that time was only beginning, and it wasn't until 2012 when Penny Chenery — Secretariat's owner — finally succeeded in securing her horse's Preakness record. The official time was changed to 1:54 2/5 — not quite good enough to beat Canonero II's 1:54. He concluded that the commission's regulation still mandated that 1:54 2/5 should remain the official time.