The president could scramble the traditional assumptions about a runoff if he carries out his promise to make an endorsement ...

Polymarket had a prediction market titled "Khamenei out as Supreme Leader of Iran by March 31?" which resolved "yes" when Khamenei's death was announced. However, Kalshi's "Ali Khamenei out as Supreme ...

The big problem with the latest quarter seemed to be that FanDuel won too many bets, leaving its users tapped out and unable to bet more. And because the company mistimed offers for free bets, those ...

Kalshi, a prediction market site, has sparked outrage after freezing $54 million in bets on the death of Iranian leader Ayatollah Ali Khamenei, citing a rule against profiting from death.

In 2016, an image of a topless Martin Castrogiovanni at a pool party alongside Zlatan Ibrahimovic brought a dramatic end to the career of one of Italian rugby's most decorated players.

Prediction markets, which allow wagers on almost anything in politics, business or culture, takes betting to a new level. They're also raising alarms.