In February, he won the historic Flamingo Stakes, also at Hialeah Park Race Track, at a mile and one eighth.
He went on to compete in and place second to Dust Commander in the mile and one quarter Kentucky Derby at the Churchill Downs in early May as the 5-2 favorite.
In the summer of his three-year-old season, My Dad George won the Stepping Stone Purse and followed that up with a third to Twice Worthy in the Haskell Invitational Stakes at a mile and one sixteenth at Monmouth Park Racetrack in Long Branch, New Jersey.
In May 1970, My Dad George's connections, owner Raymond M. Curtis and trainer Frank J. McManus, entered him in the second jewel of the Triple Crown, the $200,000 Preakness Stakes, run at a mile and three sixteenths on dirt at Pimlico Race Course in Baltimore, Maryland.
My Dad George broke poorly to the outside, lacking speed early, and settled in tenth place under jockey Ray Broussard.
[3] Around the final turn, My Dad George responded along the rail and squeezed by most of the leaders and front runner Silent Screen.