In May of 2018, the United States Supreme Court struck down the federal law that prohibited the vast majority of states from regulating sports betting. Since then, at least twenty states have legalized sports betting within their borders.
Ohio has not yet passed such legislation.
However, there are currently two bills pending at the Statehouse that would legalize sports betting, including mobile betting. The Governor has previously stated that sports betting is coming to Ohio and that it is just a matter of working out a few key public policy questions, such as addressing problem gambling, whether betting on collegiate sports will be allowed, and which regulatory body should govern the process.
It would not be surprising if sports betting was legalized in Ohio sometime within 2020.