Good news for you, it is finally absolutely legal. Online sportsbook business has long been illegal in the US bet market, but finally starting from 2017 a lot of states legalized sports betting. In the NBA, for example, they have already announced their desire to cooperate with online sports betting companies and receive financial benefits from this. A network of establishments (including sports bars) Buffalo Wild Wings also plans to integrate sports betting into its restaurants across the country. The US addressed the issue of sports betting over ten years prior during an online poker boom after gambling operators in Nevada; the main state around then where a wide range of sports wagering was totally legalized. State governments have realized how much revenue goes to foreign gambling sites and decided to legitimize their own. Oregon, Delaware Montana, and New Jersey later joined the state of Nevada.