I have no idea what the freezebrand there is, I don't recognize it at all (I don't know any brands either though, so that's a moot point)
I do see where you see the standardbred in him though. But Im not confident he'd be 100% standardbred. He also looks like he could be TB, or have some tb in him at the very least. (aside from the fact that standardbreds have tb and morgan in them to begin with :P).