He was trained by David Cross Jr.[3] The horse won 7 of 11 races at age two but stress fractures in both front shins ended his season earlier than planned.
In an attempt to heal the ankle problem, he was one of the first horses to be treated at the equine indoor swimming pool designed and built in the early 1970s by Jesse Reynolds.
In October he equaled the Louisiana Downs track record for 1¼ miles in winning the Super Derby by 12 lengths.
He was scheduled to compete for the final time in November's Meadowlands Cup but the recurring ankle problem ended his career.
Sunny's Halo died in 2003 and was buried at the Double S Thoroughbred Farm in Bullard, Texas, where he last stood at stud.