Foal Crop Drops Again; Sierra Leone is Most Active Sire

In its annual Report of Mares Bred (RMBs) released Tuesday, The Jockey Club estimates that the 2027 foal crop will be 16,500. That's down 500 from the estimate for the 2026 crop. The numbers released by The Jockey Club follow a troubling trend. The foal crop has declined every year since 2015, when there were 21,529 registered foals. The foal crop projection is computed by using Reports of Mares Bred (RMBs) received to date for the 2026 breeding season. RMBs are to be filed by Aug. 1 of each breeding season. For the RMBs received through Oct.