I want to find information about my new horse from his brand?

I have had my bay/ dark brown thoroughbred gelding for about a month. He is approximately 17/ 17.1hh tall. We have figured out that he is 15y/o. And I believe he was raced. On his left shoulder it says TC, and on his right is a 1 over a 5. His name is Abraham but, could have been made up by previous owner. I want to know about his racing career, show name etc. Thanks