Here is a great Blog post of Ginger acres about matching, helped me alot

https://horseeden.com/blog.php?id=180084&b=34

And here is a Blog post of ginger acres about Training and Tracking this is usefull for breeding also

https://horseeden.com/blog.php?id=180084&b=33

Good Luck :D

Basicly what you want to do is Check your mares Weaknesses and Streangth so lets say your Mare is weak in Int then you want a Stallion for her that is strong in Int. You always want to have the other horse to be stronger in the weakness of the other horse.

For this to work you need to track the training of the horse.

The Strength of a Horse you normaly see in week 4,7,8,11,12

The Weaknesses of a horse you normaly see in week 5,6,9,10

and so on.

https://hyrimcanyon.weebly.com/matching.html