I tend to be old school and use AEI/CI; percentage of winners and repeat winners; percentage of stakes winners; and median earnings as guides. I will look up a stallion's best runners and see if the mares were from excellent families or stakes producers to gather information on what class I think they might be.
I have never used APEX or ABC ratings.
From the small amount of information on the internet that I have located, I have discovered that the APEX ratings seem to take the guesswork out of a stallion's ability to sire high class runners.
I have a few questions....
What is the number range used? Is it 1 to 5 with 5 being the stallion that produces the classiest runners?
Are there problems with the APEX system?
Does it break down A-B-C runners or just give one number for ABC runners combined?
Where is this list located and how frequently is it updated?
Thank you!
Where are APEX ratings found?
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Apex
Give the Pope and the King of England a horse and in thirty days, they'll be stealing halters.