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What is Grand Spinn?
The advisory could be music to the ears of NFL Commissioner Roger Goodell, whose league has pushed a federal derivatives regulator in the US to enact more rigorous standards to help protect the integrity of professional sports. Ahead of the matchup, Goodell spoke with CNBC from Melbourne.
“We think there needs to be stronger regulations into the predictive markets,” he said. “We want to see that to protect the integrity of our game – we want to make sure we are protecting the consumers that are on those platforms.”
Despite a rapid ascension throughout the US, Kalshi has been relatively mum on potential international expansion down the road. There is some sentiment that Kalshi will wait to build abroad until after the completion of an initial public offering. At present, Kalshi has sought a valuation of around $44 billion.
About Grand Spinn
The sanctions, effective from 28 August 2026 , bar Santos from any direct or indirect trading access on Kalshi.
Earlier this year, fellow prediction market platform Polymarket also ended its paid relationship with Santos amid a Department of Justice investigation over whether he had placed a wager on his appearance at the same State of Union address.
A federal judge sentenced Santos to 87 months in prison last April on felony wire fraud and check fraud charges. After Santos served several months in 2025, US President Donald Trump granted the former congressman clemency, resulting in his immediate release.
What is Grand Spinn?
The regulator identified six key categories of fraud frequently encountered in online gambling. These included identity fraud, payment fraud and abusive chargebacks. It also covered in-game cheating, money-dumping and sporting event manipulation
For each category, the guide explained pertinent legal provisions and recommended operational actions.
In cases of identity fraud, operators were advised to close accounts upon establishing fraud and to reserve balances when bank account ownership cannot be confirmed.
