Seattle Slew

Seattle Slew (February 15, 1974 – May 7, 2002) was an American Thoroughbred race horse who won the Triple Crown in 1977--the tenth of eleven horses to accomplish the feat. He remains the only horse to win the Triple Crown while undefeated. In the Blood-Horse magazine List of the Top 100 U.S. Racehorses of the 20th Century, Seattle Slew is ranked ninth.

A descendant of Nearco through his son, Nasrullah, Seattle Slew was sired by Bold Reasoning and out of My Charmer. He was foaled at Ben Castleman's White Horse Acres Farm near Lexington, Kentucky. Not expected to be a great racehorse, he was sold to Karen and Mickey Taylor of White Swan, Washington. They named him for the city of Seattle and the sloughs which loggers once used to transport heavy logs. But Karen felt that the spelling of slough — a slow-moving channel of the Pacific Northwest — would be too hard for people to remember, so the spelling was changed to Slew. The colt's co-owners were Jim and Sally Hill. Another co-owner was Glenn Rasmussen, the accountant for the equine partnerships.