Fillies' Mile
Reform was retired from racing to become a breeding stallion. He sired one British classic winner in the filly Polygamy who won the Oaks Stakes in 1974. The best of his other progeny included Roi Lear (Prix du Jockey Club), Admetus (Washington, D.C. International Stakes), Lancastrian (Prix Ganay), Valiant Heart (Grand Prix de Paris), New Model (Gran Criterium) and Formulate (Fillies' Mile). He died in 1983.