Foaled in Maryland, Concern was best known for his wins in the 1994 Breeders' Cup Classic and the grade two Arkansas Derby.
Concern established himself as one of his crop's top three-year-olds by winning two big races and finishing in the money in each of his twelve starts as a sophomore.
His connections then made the decision to bypass the Kentucky Derby in favor of being fresh for the hometown $750,000 grade one Preakness Stakes at Pimlico Race Course.
Then he unleashed his late rush and made up about a dozen lengths, finishing third behind Tabasco Cat and Derby winner Go for Gin in the "Run for the Black-Eyed Susans."
In the autumn of 1994, he shipped to Canada to race in the nine furlong grade two Molson Export Million Stakes placing third to Dramatic Gold.
Concern achieved his greatest success using his come-from-behind running style in moving from last to first, again beating Tabasco Cat and Dramatic Gold in the 1994 Breeders' Cup Classic.
After finishing eighth to Cigar in the muddy Breeder's Cup Classic at Belmont Park, Concern returned to the Fair Grounds Race Course, where he began the year with a win in the New Orleans Handicap, to win in an Allowance Race on November 24, 1995, two days after Thanksgiving, his career finale.
A descendant of the great sire Nearco, Concern was retired to stud in 1996 at Northview Stallion Station in Chesapeake City, Maryland until 2003.