"Saddlesore Galactica" is the thirteenth episode of the eleventh season of the American animated sitcom The Simpsons. It originally aired on the Fox network in the United States on February 6, 2000. In the episode, the Simpson family rescues a diving horse named Duncan from the abuse of his owner and keeps him as a pet. When the cost of keeping Duncan rises, Homer and Bart train him to be a racehorse. Duncan wins several races and, as a result, Homer is threatened with death by a group of jockeys. Meanwhile, Lisa is upset over her school unfairly losing the musical band competition at a state fair and writes a letter to U.S. President Bill Clinton in protest.