Official betting is when the sportsbook officially accepts bets on a game. This differs from unofficial betting, where the bookmaker is a few seconds behind in accepting bets on live games. This is due to a delay built into the streaming technology used by betting providers.

Colorado legalized betting in 2020, and opened multiple online operators. However, there are restrictions involving in-state college teams: betting on team outcomes is allowed, but player prop bets are prohibited.

Florida had a complicated launch in 2021 and has been unable to offer online wagers since then, as legal issues continue. There was a major ballot proposition in November of 2022 to legalize sports betting, but it was defeated by voters. This topic may come up again in 2023.