This week, Delaware will become the first state to offer widespread sports betting since the Supreme Court's decision to scrap the 26-year ban on state-sanctioned sports wagering. The landmark step towards nationwide legalisation isn’t without its cynics, but for the world’s largest sportsbook operators, the door has been opened to monetise the estimated 30 million fantasy sports players in the states - not to mention the $150bn a year wagered illegally.

With more than 36 states predicted to offer sports betting within 5 years, we’ve taken the opportunity to compile our insight on the world’s largest gambling, bookmaking and technology brands - and most up-and-coming challengers - to identify the associated marketing and sponsorship opportunities that will be on offer to agencies, sports teams and rights-holders in the coming years.

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