Noted for his refinement and action, his impact as a sire modernized the Saddlebred breed in both the United States and South Africa.

As a result of his influence on the breed, at his death he was buried at Kentucky Horse Park and a bronze statue of him stands atop his grave.

[2] As a yearling in 1968 at the Kentucky State Fair, Supreme Sultan was sold to Barlite Farm in San Antonio, Texas.

At the age of 11, Sultan topped the futurity sire ratings of Saddle and Bridle magazine, the youngest horse to accomplish this feat.

[4] Tom Moore showed two-year-old Sultan in fine harness, winning the Illinois and Indiana Futurities.

[1] He was noted for being more refined in appearance than other Saddlebreds of his time, and also admired for his very high and elegant action, particularly in his hindquarters.

[3] He is considered the horse that created the modern style of American Saddlebred in both the United States and South Africa.