Spellmaster

How to play Spellmaster

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 Spellmaster?

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How to play Spellmaster

Singles can be profitable, but parlay pricing requires the market maker to calculate the correlations between multiple outcomes and respond dynamically to individual requests. It is a skill set built over years in the sharper regions of the existing sports betting ecosystem.

Marantelli identifies White Swan and Susquehanna as two firms operating at industrial scale in parlays, with Jump Trading, Mojo and DL Trading among the possible leading group. Below them are numerous smaller syndicates, some managing between $5 million and $10 million, alongside sports-specific specialists.

Enda Kendrick, chief executive of service provider Veltium, similarly says the largest UK and European sharp-betting groups have moved rapidly into US prediction markets. He believes there are also more than 100 smaller operations, ranging from individual traders to teams of around 10, interested in entering the regulated US market.