UK online betting exchange Betfair has signed a deal with Yahoo UK and Ireland, extending its betting platform to a mass market audience.
At peak times, Betfair can match up to 12,000 bets a minute
Yahoo Betting, to be launched in March, will be built and managed by Betfair and customised for Yahoo users.
Betting exchanges enable punters to bet with each other. They make their money by charging a commission on winnings.
Privately-owned Betfair, founded in 1999, is by far the largest player among UK-based exchanges.
The Yahoo service is expected to offer markets on sports and finance events.