Great 27

What is Great 27?

For so long, CalvinAyre.com has been a beacon in the poker reporting landscape but as the outgoing incumbent of this position of privilege, I haven’t been at the centre of this role for so long as to claim anywhere near all the credit.  

A huge thanks for his outstanding reporting on this site should go to Lee Davy, who for many years, brought poker to life on Calvin Ayre. I personally owe a huge debt of gratitude to Lee for the efforts he made in not only making me feel so well prepared to take up the mantle when he moved on to pastures new, but in establishing the Calvin Ayre brand so well for so many years within the poker world.

Ours is a niche industry, but it is a wonderful and welcoming one, and Calvin Ayre has been a huge part of the poker industry in my time, too. The name has opened doors, helped me speak to some of the biggest and best poker players from around the globe.  

What is Great 27?

One of the main concerns is Bill 560/2025, which is currently making its way through the council. The proposal prohibits advertising by betting companies at events in the city of São Paulo. This applies to events organised by public or private entities, whether for-profit or non-profit.

The bill prohibits signs, banners, or display panels in arenas, gymnasiums, stadiums and other sports event venues. It also bans advertising on public transport, such as the side panel, exterior or the rear window of buses. The bill imposes a fine of BRL50,000 ($10,000) and a ban on hosting events for up to two years.

The proposal does not explicitly prohibit the display of betting brands on team jerseys, but some city councillors want to include this in the bill.

How to play Great 27

The company must also provide data to the firms making markets on those events.

“If we just sold the data to Kalshi in order to list the markets but no one was coming in and placing liquidity, there’s no point in them listing the markets,” Monk said. “We also need to supply the data to the market makers to inform their models.”

Catalist initially received a list of fewer than 10 potential market makers from Kalshi. It has since completed agreements with close to 20 and is engaging with approximately another 20.