High Fly, a grade I winner and one of the favorites in this year's Kentucky Derby (gr. I), has been retired from racing because of a medial condylar fracture of his right front fetlock. The injury was discovered after he had worked at Belmont Park in preparation for the Oct. 29 TVG Breeders' Cup Sprint (gr. I).A homebred for Charlotte Weber's Live Oak Plantation, High Fly started his racing career with five wins from his first six starts, all in Florida. He captured the Florida Derby (gr. I) as well as the Fountain of Youth (gr. II) and Aventura Stakes, and was third in the Holy Bull Stakes (gr. III). He was trained by William P. White before being transferred to Nick Zito after the Feb. 5 Holy Bull.High Fly, who went into the Kentucky Derby off a solid score in the Florida Derby, was the 7-1 fourth-choice in the Run for the Roses. In contention early, he held the lead at the top of the stretch, but weakened later on and finished unplaced. He also raced in the Preakness, but ran unplaced.High Fly was out of action for most of the summer and came back in the Sept. 11 Jerome Handicap (gr. II) at Belmont Park. He finished second to Silver Train, subsequent winner of the Sprint, in what proved to be his final start.A son of Atticus, High Fly retired with five wins from nine starts and earnings of $927,300. He is a half-brother to stakes winners Estimraar and Smokey Mirage and is out of grade I stakes-placed Verbasle (by Slewpy). A decision has not been reached as to where he will enter stud.