Purchased at the 2021 Fasig-Tipton Saratoga Yearling Sale, Integration is a son of Quality Road out of the grade one winning mare Harmonize. For Hall of Fame trainer Shug McGaughey and co-owned with Woodford Racing, the colt first started in the summer of 2023. In his second race, he captured the $500,000 Virginia Derby (G3T) at Colonial before finishing his 3-year-old season with a win in the Hill Prince Stakes (G2T) at Aqueduct.

As a 4-year-old in 2024, he was third in the Maker’s Mark Turf Mile (G1T), won the Million Preview Stakes at Colonial, was second in the Arlington Million (G1T), and then became a millionaire with a win in the Red Smith Stakes (G2T).