The only age at which any hosrse can run in th KY Derby is 3 (three) yrs old, as is the case with the other two Triple Crown races--the Preakness Stakes and the Belmont Stakes.
Secretariat's time at the Kentucky Derby was 1 minute, 59 seconds and 2/5.
Secretariat.
secretariat
Horse 'Secretariat' won the Derby in 1973.
Secretariat holds the record for the fastest Kentucky Derby time, running the race in 1:59 2/5 in 1973.
Angle Light.
May 5th, 1973.
Secretariat
Animal Kingdom won that Derby in 2:02.4 Secretariat's win was 1:59 4/5 Secretariat wins by nine lengths.
May 7, 2005 was the date on which the 131st Kentucky Derby was held. The winning horse was Giacomo [foaled February 16, 2002]. The winning jockey was Michael Earl Smith [b. August 10, 1965]. The winning time was 2 minutes 02.75 seconds.
Secretariat
secretariat