John Henry
Australian record is Makybe Diva in the world is Deep Impact.
The richest racehorse to date is Curlin with over $10,000,000 in earnings
no
It would probably be a registered [insert breed here]. Thoroughbreds are the most common breed of racehorse, but Arabians, Quarter Horses, Paints, and Appaloosas all race as well.
Kruddler
After racehorse secretariat
Shergar of Ireland
Racing Plate
A steeplechaser
Milford Sound
Man o' War
A common name for net income kept is "retained earnings."