How can I tell if a horse has had competition in his prior races?

Question

Other than Class in the past performance is there any method

that I can tell the competition in prior races

Answer 1

riding it.dah

Answer 2

Yes , look at the back of his papers ,,If your talking race horse. it will show what races he won and who he ran against,

Or if you do not have his papers and have his tattoo number call up the Jockey Club In New York ,

  

Show horses the A.S.H.A. If he showed and he  and the owners were a member they will have records on him also ,,