Extra Crown Classic

How to play Extra Crown Classic

Yahoo Finance has soured on prediction market Polymarket, closing a deal between the financial news platform and the event contract operator in less than a year after it began. 

The two companies began collaborating in November 2025. As part of the deal, Polymarket provided data for a dedicated prediction market section on Yahoo Finance. The feature provided market-based probabilities of economic, political, and financial developments alongside Yahoo Finance content. 

The Yahoo Finance prediction market section was taken out in April. The companies have now confirmed that the larger deal is also off, as reported by Bloomberg. 

What is Extra Crown Classic?

According to the ASA’s Code for gambling advertising, anyone who “was, or seemed to be, under 25 years of age” must not be depicted gambling or playing a significant role in advertisements. 

The regulator concluded that the central figure’s youthful facial features, casual styling and excited demeanour gave the impression he was in his late teens or early twenties. 

As such, the ad violated rule 16.3 of the CAP Code (Edition 12).

What is Extra Crown Classic?

Marantelli says the London-based White Swan is a significant market maker on several secondary exchanges, accounting for as much as 40% of activity on some platforms. Its particular focus is the RFQ, parlay market.

“Just better margins,” he says of that decision. “I think it’s more defendable. It’s the area that fewer people can do well. So I think it’s more defendable margin, more ability to get long-term contracts and beneficial positions.”

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.