A 15-year-old UK sports betting exchange wants to do something no one else has quite pulled off: offer both prediction markets and traditional sports betting under one roof in the United States.
Matchbook, a peer-to-peer betting exchange that has operated in the UK for over a decade and a half, is making a calculated push into the American market. Its US associate, RSBIX LLC, filed for CFTC approval back in September 2025, and the company’s leadership initially expected clearance by March 2026. That timeline has since stretched, with approval now potentially arriving as late as Q3 2026.
The UK proving ground
Before crossing the Atlantic, Matchbook decided to build a proof-of-concept at home. In January 2026, the company launched a dedicated prediction market platform in the UK, offering simple binary yes/no contracts across sports, politics, and other events.
The contracts are priced in probability terms. If you believe England will win the World Cup, you buy a “yes” contract at whatever price the market sets, and that price reflects what the crowd collectively thinks the probability is.
