Markets608 words
The official league data rule and its two clocks
The least-read rule in sports betting decides who owns the moment a basket counts. Massachusetts wrote it with two deadlines in it, and they run in different directions.
What is in this piece — 6 sections
When a shot goes in, something has to tell the sportsbook. For a bet settled after the final whistle, the box score will do. For a bet settled during play, the question of whose feed counts is worth money, and Massachusetts answered it in 205 CMR 247.05.
What the rule actually grants
The rule is permissive, not automatic. A sports governing body headquartered in the United States may notify the Commission that it wants in-play wagers on its events settled using its own official league data. Until that notification exists, an operator is free to use any data source it can justify. The league's leverage is a filing, and it does not exist until the filing does.
Clock one: sixty days to transition
Once the notification is made, operators have 60 days to move to the official feed. This clock runs against the operator: it is a compliance deadline, and at the end of it, settling in-play wagers from anything else is a violation.
Clock two: a hundred and twenty days to object
The second clock runs the other way. An operator may demonstrate to the Commission that the official league data is not available on commercially reasonable terms, and it has 120 days to do so. If that showing succeeds, the obligation does not bind. The regulation lists the factors that go into commercial reasonableness — availability from more than one authorised source, the price and quality on offer, the terms other operators in other jurisdictions are getting, and whether the feed can actually be delivered at the speed and in the format in-play wagering needs.
So the two clocks overlap: a sixty-day duty to comply and a hundred-and-twenty-day window to argue the duty is unreasonable. An operator that misses the first while pursuing the second is still out of compliance during the gap. That is the structural subtlety, and it is the reason these disputes get resolved by negotiation rather than by filing.
Why Massachusetts matters in a national argument
The idea came from elsewhere. Tennessee was the first state to mandate official league data for in-play wagering when it legalised in 2019, and Illinois, Michigan, Virginia and Arizona followed with variations — Michigan with a request mechanism giving the leagues 60 days, Tennessee moving to repeal its own mandate in 2023 after experience with it. Massachusetts landed later and wrote the version with both an obligation and a pressure valve.
For a reader, the practical consequence is small and specific: when an in-play market is suspended or a settlement is disputed, the first question is not “did the book cheat”. It is which feed the book was contractually required to settle from, and whether that feed had the event yet. The answer is in a rule, and the rule is two pages long.
Three questions this rule answers
- Has the league filed? No notification, no mandate.
- Which clock are we in? Inside sixty days, the operator is transitioning. Inside a hundred and twenty, it may be objecting.
- Is there a second authorised source? Sole-source supply is one of the factors the Commission weighs, and it is the one that most often decides whether terms are commercially reasonable.
What may be wagered on in the first place is in the two collegiate bans; the arithmetic of the price those wagers carry is in what −110 both ways really costs. Donor material on this desk: data deals decoded and the esports betting boom. Desk index: Markets; full index: the archive.
What we read
Every figure above comes from one of these documents. If a number is not in them, it is not in this piece.