Isaac Murphy was an African American jockey who achieved great success and fame in the late 19th century. Born in 1861 in Kentucky, Murphy began his career as a jockey at a young age and quickly gained a reputation for his skill and talent on the racetrack.

Murphy became the first jockey to win three Kentucky Derby races, with victories in 1884, 1890, and 1891. He was known for his strategic race-riding abilities, impeccable timing, and exceptional horsemanship. Murphy's success in the sport made him one of the most celebrated and respected jockeys of his time.

Despite facing discrimination and racism as a Black man in a predominantly white sport, Murphy's success helped pave the way for other African American jockeys in the horse racing industry. He was inducted into the National Museum of Racing and Hall of Fame in 1955, cementing his legacy as one of the greatest jockeys in American racing history.