[2] Code of Honor won his debut on 18 August 2018 at Saratoga Racecourse, and then came second in the Grade 1 Champagne Stakes on October 6.
[7] Code of Honor then won the two biggest races of his career, the first being the Grade 1 Travers Stakes on August 24.
On September 28, he won the Grade 1 Jockey Club Gold Cup over older horses after original winner Vino Rosso was disqualified.
Code of Honor won his first start as a four-year-old in the Grade 2 Westchester Stakes on June 6.
Code of Honor started his five-year-old season with a fifth place finish in the Grade 1 Pegasus World Cup on 2 January 2021, which was won by three time Grade 1 winner Knicks Go who had previously won the Breeders' Cup Mile.