In the list of the top 100 U.S. thoroughbred champions of the 20th Century by Blood-Horse magazine, Old Rosebud ranks 88th.

Bred by John E. Madden, the bay colt (soon to be gelded) was from the stallion Uncle's first crop of foals.

Weir sold a majority interest in the gelding to Hamilton C. Applegate, the treasurer of Churchill Downs.

Three weeks after the Derby, Old Rosebud sustained a bowed tendon during the May 1914 running of the Withers Stakes at Belmont Park.

He came in second in the Idle Hour Stakes, the Bashford Manor Stakes, the Paumonok Handicap, the Mount Vernon Handicap (losing to the four-years-younger August Belmont Jr.'s Lucullite, but beating Sun Briar, Exterminator's stablemate), and the Burnett Woods Cap (to the five-years-younger stakes-winning Sennings Park).

Old Rosebud competed for a total of 10 years before suffering his final injury in a claiming race at Jamaica Racetrack.