How many break their maiden?

Question

of all the horses that ever start a race in their lifetime how many of them will break their maiden

what about all the horses that ever go into training how many of them will break their maiden

Answer 1

I remember reading an article in an Australian horse racing magazine a few years ago that stated that only 6% of horses who make the racetrack will win ONE race i.e break their maiden, and of those 6% of horses who win a race, only 3% of them will win 6 races in their careers.

Answer 2

about 30 % of starters will break there maiden