Rachel Alexandra, the 2009 Horse of the Year, is carrying her second foal, according to owner Stonestreet Farms’ Facebook page. Rachel Alexandra was bred to Bernardini this year. The 6-year-old Medaglia d’Oro mare was the first of two female Horses of the Year to produce their first foals this year. Rachel Alexandra’s first foal, a colt by Stonestreet Stables runner Curlin, was born Jan. 22 at the Lexington, Ky., farm. Zenyatta, the 2010 Horse of the Year, had her first foal, a Bernardini colt, on March 8 at Lane’s End Farm in Versailles, Ky.