Hmmm.. He doesn't have any leg markings... I'll double check in my pictures, you can view him in my barn, He's Zeak.
He also may be brown, because he's very dark and has a lighter brown mane in person. This is who I think he might be: http://pathway.ustrotting.com/search...orse_id=831709
The USTA is the best bet. You can look up win records or history. The other thing you can do is call them if you have a question. Whenever I have asked them about a standardbred they have been nothing but friendly and helpful.