Kalshi has been pushed closer to being forced to block all Massachusetts customers from its sports contracts after a state judge denied the business an emergency stay, meaning an injunction to ban its sports offering from the state is technically now in force.
The injunction, issued Friday, does not require Kalshi to block customers from the state immediately, but instead has a 30-day implementation period, which will give Kalshi time to seek a stay from an appeals judge. However, it may have to also use that time to prepare for the possibility the stay is denied by taking actions such as setting up geolocation.


