Only obstacle that you will run into is you will make enemies with books and majority of the books will limit your and shut you down. If you cannot get accounts in pinnacle and betcris/bookmaker you wont be able to get far as million.
So, you made million dollars from sportsbetting, but when I first see your topic, I thought you achieved that big mile stone through dicing or any other chance based gambling. Overall, I guess sportsbetting is something which helps you when you are skilled enough on picking right predictions even we do hear that match fixing are too common these days. I am just curious to know what are your favourite sports and how often you do gamble.
I guess these days we are having lots of platforms for sportsbetting hence I believe might get a chance to copy like you. I did not check your sheet due to limitations of bandwidth right now but I guess you must have re-used your profits to increase your bet amount so that you might have been quicker on your race toward millions rather than being sticking with only your original bankroll of $5k.