About this app
How to play 81 Wins
As you probably know by now, our time here at CalvinAyre.com is coming to an end. It’s been a pleasure to be a part of this site for the past two years, and there’s a very bittersweet feeling of seeing it come to a close, but looking to the next opportunity.
I’d like to thank our leader, Calvin Ayre, for giving me an opportunity to write about the gambling industry, but also for creating a platform that spoke to a different side of the industry, and wasn’t afraid to reveal uncomfortable truths when necessary. I’m excited to see what comes next in his campaign to wake the world up to the power of Bitcoin SV.
Bill Beatty, our Editor-in-Chief, was my guiding light. I learned to think of journalism, the gambling industry, and even life, in whole new ways thanks to him, and I’ll always count on him as one of my mentors.
What is 81 Wins?
Efforts to update its legacy tech were also set in motion, and short-lived CEO Gavin Isaacs told iGB at ICE in January 2025 that his biggest challenge in the role was to modernise its core platform.
The operator declined to comment on losing its spot in the FTSE 100, but recent sentiment from the senior management team has been positive in recent quarters as its turnaround efforts have shown green shoots amid growth returning to its core markets. This is despite various regulatory and tax headwinds across Europe.
In Q1 2025, the group reported double-digit digital growth, thanks to strong UK, Brazil and US online performances. The period marked Stella David’s first quarter in the full-time group CEO role.
About 81 Wins
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.