Great Rhino

What is Great Rhino?

The sanctions, effective from 28 August 2026 , bar Santos from any direct or indirect trading access on Kalshi.

Earlier this year, fellow prediction market platform Polymarket also ended its paid relationship with Santos amid a Department of Justice investigation over whether he had placed a wager on his appearance at the same State of Union address. 

A federal judge sentenced Santos to 87 months in prison last April on felony wire fraud and check fraud charges. After Santos served several months in 2025, US President Donald Trump granted the former congressman clemency, resulting in his immediate release. 

About Great Rhino

According to reporting by The Edmonton Sun, an advertiser operating under the name “Prime Spin Zone” placed an ad on Instagram showing Davies’ father being arrested by Edmonton police.

The video shows a vault filled with cash, followed by a scene where Davies’ father is released after police allegedly determine the money came from legitimate gambling, the ad claims.

The AI-generated image of Davies’ father then urges viewers to visit the same online casino he used. Users who click the ad are redirected to Oxibet, an offshore gambling platform based in Comoros.

What is Great Rhino?

Yashin had spent around 15 years building businesses across industries ranging from fashion technology and retail hardware to sneaker cleaning, as well as investing in early-stage technology companies. Yet when he attempted to place a football bet, he found the interface so impenetrable that he eventually headed to a betting shop to ask how to do it.

When he subsequently looked at casino games, something else struck him – the experience did not seem dramatically different from the slot machines he remembered seeing years earlier.

“I started thinking about how to combine the really great monetisation of randomness in casino games with the attention loop of social media platforms,” Yashin says. “The idea was: what if you could bet on the result of a short video or a short TikTok?”