Dinosaur Rage

What is Dinosaur Rage?

The Commission launched its investigation into various reports of insider betting on the election date in June 2024 after Ladbrokes flagged a bet placed by Williams, who was recorded as a politically exposed person.

Further bets flagged by operators involved other politically sensitive individuals, including Metropolitan Police officers and political advisers. The Commission charged 15 people total in April 2025. Four have now pleaded guilty.

The offences relate to special betting markets that let customers wager on the exact date of the general election.

What is Dinosaur Rage?

Strip away the language of contracts, order books and event trading and Bernard Marantelli has a blunt description of what is happening inside US sports prediction markets. “Kalshi is a sportsbook that’s just not allowed to have an in-house risk team,” says the founder of White Swan Data, one of the specialist firms now making markets on prediction exchanges.

The difference is all about the risk function. A sportsbook employs traders to price bets and manage its exposure. An exchange provides an API through which firms compete to quote prices and supply liquidity.

“Here’s an API. Bernard and 88 other people can market-make all these request-for-quotes (RFQs),” Marantelli says. “Some people might come in and just do esports because they’re esports experts. Others do everything. Some focus on same-game parlays. But it’s a sportsbook.”

About Dinosaur Rage

Our tip: Both teams to score and draw (4/1)

Sunday 28th February

Crystal Palace vs. Fulham (12 noon GMT kick-off)