The son of Hal Dale and the mare Adioo Volo, the horse named Adios was born on January 3, 1940 at Two Gaits Farm, in Carmel, Indiana. Trained and driven by Frank Ervin and for a while owned by Harry Warner of Warner Bros. film studio, Adios was a multiple world champion during his racing career. His pacing record at the Shelbyville, Indiana fair stood for 43 years. Despite his racing success, he is most famous for his offspring.
In 1948, Adios was bought by harness racing driver Delvin Miller to stand in stud at his Meadow Lands farm near Washington, Pennsylvania. The horse proved to be a tremendous stud, considered by many to be the greatest in harness racing history. He sired eight [Little Brown Jug (horse racing)|[Little Brown Jug]] winners, more than any other horse, and his sons, Adios Butler and Bret Hanover both became winners of the Triple Crown of Harness Racing for Pacers.
Before he died in 1965, Adios had sired 589 offspring. His name is synonymous with horse racing and can be found on consumer products and harness horse equipment. At his passing, the horse was buried at Meadow Lands farm under his favorite apple tree near the paddock that had been his home for seventeen years.
A race was named for him, held each year on the second Saturday in August at The Meadows Racetrack and Casino in Meadow Lands, Pennsylvania. Since the first Delvin Miller Adios in 1967, it has evolved into one of the important events in the harness racing season.
Adios Golf Club in Coconut Creek, Florida was named after the horse by his owner and club founder Delvin Miller. The course was designed in 1982 by fellow founder Arnold Palmer.
In 1977, a book was published by Marie Hill titled Adios: the big daddy of harness racing.