Not only is Trevor a very good race caller, he is, in my mind, a pioneer. In my (perhaps flawed) memory, he was the first to regularly incorporate comments on how horses were performing into his calls. He notes which horses are "moving comfortably", which are "having to be asked", which are "crying out for room", which "loom a danger", etc. Go back and listen to how early he picked up Imperialism's move in his call of the San Rafael and told viewers to focus on the horse "in the pink sleeves." I don't like the fact that he doesn't give split times, but he does make make general comments on how fast the pace is. Other callers (like Tom Durkin) now regularly do these kinds of things, and I think horse racing is better for it.