The Jockey Club is projecting a North American registered Thoroughbred foal crop of 17,000 in 2026. This represents 300 fewer foals than the 2025 foal crop estimate of 17,300.
The foal crop projection is computed by using Reports of Mares Bred (RMBs) received to date for the 2025 breeding season. RMBs are to be filed by August 1 of each breeding season.
This year, The Jockey Club has published preliminary statistics regarding mares reported bred by state/province through the current date for 2024, 2023, and 2022. These reports are updated daily and can be found here.
For the RMBs received through Sept. 30, 2025, The Jockey Club reports that 740 stallions covered 24,681 mares in North America during 2025.
The Jockey Club estimates an additional 2,000 to 3,000 mares will be reported as bred during the 2025 breeding season.
Of the RMB reports received, 201 mares were part of the Mare Incentive Program, which waives registration fees for certain 2026 foals of mares that meet criteria defined by The Jockey Club. This initiative was announced in December 2024 to stimulate interest in mares that appear to have left production. The report of Mare Incentive Program mares is available to anyone with an Interactive Registration account and is filterable by 12 data elements, including sire, dam sire, age, money earned, and class of race achieved.
Tiz the Law had the highest number of mares bred in 2025 with 274 followed by Arabian Knight (273), Practical Joke (263), Justify (244), Charge It (235), Domestic Product (224), Gun Runner (218), Not This Time (214), Vekoma (211), and National Treasure (202).
CANADIAN PROVINCES – Stallions and Mares Bred
CANADIAN SIRES and MARES BRED 2025
(minimum 9 mares bred)
Harlocap 75 ON
Tapiture 69 AB
Reload 67 ON
Silent Name (JPN) 39 ON
Frac Daddy 34 ON
Weyburn 34 ON
Mucho Macho Man 31 ON
Counterforce 28 AB
Bakken 23 BC
Point of Entry 23 ON
Signature Red 23 ON
Following Sea 21 MB
Collusion Illusion 20 ON
Avie’s Flatter 19 ON
Tamarkuz 19 ON
Shaman Ghost 17 ON
Big Screen 14 ON
Boisterous 14 AB
Fight On 14 AB
Nielson 12 MB
Northern Causeway 12 CA
Perfect Speighty 12 ON
Ami’s Flatter 9 ON
Gamble’s Exchange 9 ON
Ghostzapper 9 ON
Keepcalmncruiseon 9 MB
Know It Now 9 AB
More News
