Forty Under is a 6 year old gelding and has raced from 2019 to 2022. He was sired by Uncle Mo out of the Black Tie Affair mare Argent Affair. He was trained by Jeremiah Englehart and has raced for Three Diamonds Farm, and was bred in Kentucky, United States by Cedar Hill LLC. Forty Under has raced at Aqueduct, Belmont Park, Churchill Downs, Fair Grounds, Kentucky Downs, Oaklawn Park, Penn National, Saratoga with wins at Fair Grounds, Saratoga. His has a stakes win at the 2022 Colonel E. R. Bradley Stakes (LS).