A number of states have incorporated official data into sports betting laws, but the clauses usually include a qualifier that the terms are “commercially reasonable.” That appears to open the door for operators to escape mandates by showing that the data is not competitively priced. Sources say the leagues are demanding 0.25% of the top of US wagering handles, which is significantly higher than the current market rate for real-time data. Currently, the major US sports leagues all have data arrangements with Sportradar or Genius Sports, which are able to provide side-by-side comparisons of pricier official data against cheaper unofficial data.

If a game is shortened by weather and does not resume at the same point of the scheduled day, all bets are void (unless backed by push rules). Full-game moneylines become official after five innings, and total bases, win/loss records and more become actionable after seven innings.

NHL players and those working for a team are prohibited from placing bets on any NHL game, but they can bet on non-NHL events in states where it is legal. That restriction could be enforced by a team’s collective bargaining agreement or its constitution.

Iowa passed its sports betting law in 2019, with the retail and online launch occurring in 2020. Its sportsbooks now include DraftKings, BetMGM and PointsBet, as well as Caesars. Illinois legalized sports betting in 2021, and the sportsbook rollout was accelerated by its decision to skip an in-person requirement for new customers. Players can download a sportsbook app and register from anywhere in the state.