The engine of every sport — three centuries of selection for one thing: try.
No breed has shaped the modern horse like the Thoroughbred. Closed since the General Stud Book of 1791 and selected for nothing but speed and heart, it is the blood every warmblood registry borrows when it wants a lighter, quicker, braver horse. Every breed on this list carries some of it.
For sport buyers, the great opportunity is the off-track Thoroughbred. Thousands leave racing sound and young each year, and a well-restarted OTTB delivers more athlete per dollar than anything on the market — which is why the eventing world never stopped riding them.
The honest caveats: they are keen, they feel everything, and they are not cheap to keep — good feed, good feet and good management are part of the price. The quality of the restart matters more than the racing record. Buy the retraining, not the past.
Every pre-purchase exam covers the basics. For this breed, ask your veterinarian to pay particular attention to: