Is Vegas Beatable?

As the sports betting industry is gaining steam, I am interested in selling NBA spread picks to sports bettors via subscription to my service. I will use regression models to predict outcomes of NBA games. My goal is to make a prediction on the spreads (point differential) of each game, and use that information to bet against the Vegas spread. Because Vegas typically takes a 10% rake for each bet, I have to be able to beat Vegas 52.5% of the time in order to be profitable. My data was collected via scraping, using Beautiful Soup, basketball-reference.com and sportsbookreviewonline.com, using data from all regular season games from 2011–2020, which includes 11,656 games.