Analysts said Colorado’s new legal sports betting market could resemble New Jersey’s in how the activity is transacted. The Rocky Mountain State became the 21st to legalize sports betting last week, allowing casinos in three regions, all of which are roughly a 30-to-45-minute drive from population centers, to operate in-house sportsbooks and mobile sports wagering sites. The deal is similar to New Jersey’s, where sportsbooks operate in the far northern and southern ends of the state, leaving a heavily populated middle untouched. Mobile wagering accounts for roughly 85% of all sports wagers in the Garden State.